A ΔV = 2.3 V battery loses E = 5.5 J of energy each day (t = 24 hrs) powering a cell phone. a) Input an expression for the average current, I, supplied to the phone.
Q: A 100 W lightbulb and a 60 W lightbulb each operate at a voltage of 120 V. Part A Which bulb carries…
A: Voltage, V = 120 VPower, P1 = 100 WPower, P2 = 60 W
Q: 3. 3 resistors are connected to a 9 v battery. The values are listed in the table below. a) Draw a…
A:
Q: What is the equivalent resistance between points A and B in the figure when R = 16.1 Q? Normal…
A:
Q: Copper wire of diameter 0.256 cm is used to connect a set of appliances at 120 V, which draw 1700 W…
A:
Q: A physics student has a single-occupancy dorm room. The student has a small refrigerator that runs…
A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: Electrons in an X-ray tube are accelerated through a potential difference of 1.25 x 102 kV and…
A: Electrons are accelerated through potential difference V=1.25×102 kV Current is I=13 mA Note: 1…
Q: A 1.8x10-3 V/m electric field creates a 3.1x1017 electrons/s current in a 1.0-mm-diameter aluminum…
A:
Q: A 60-cm-long heating wire is connected to a 120 V outlet. The wire dissipates 45 W. Part A What is…
A: Step 1: Step 2: Step 3:
Q: How much energy, in joules, is this battery capable of supplying? Express your answer in joules. U =…
A:
Q: A 36 Ω component is connected to a 12 V battery. How much energy is expended per second? W
A:
Q: Is this the right answer?
A: Step-1:To determine: what is the charge at time t=6s.Given information:Between time t < 0 to t =…
Q: B c) The mains lighting circuit for a domestic house uses two copper wires of diameter 1.5 mm, the…
A:
Q: A physics student has a single-occupancy dorm room. The student has a small refrigeratorthat runs…
A: The objective of the question is to calculate the total current used by the student, the voltage…
Q: Current flows out of the positive terminal of a 13 V battery and into a 35 N resistor. The current…
A:
Q: The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that…
A: Given., Thermal energy is generated W = 177 J For time t = 7.69 Voltage V = 12 V We know the…
Q: a) A well-insulated electric water heater warms 127 kg of water from 20.0°C to 45.0°C in 23.0 min.…
A:
Q: A resistor of 1.8 k has a potential of 4.0 x 10^2 V. a) What is the current through the resistor? b)…
A:
Q: In the figure,E₁6.00 V, E₂-12.0 V, R₁100 S2, R₂-2002, and R3-300 2. What are the (a) size and…
A: The circuit is given below:
Q: A potential difference of 4.35 V is applied across points a and b in the figure. R₁ is equal to 9.25…
A:
Q: A 45 μF capacitor with an initial energy of 0.2 J is discharged through a 8 MQ resistor. What is the…
A: The capacitance of the capacitor, C0=45μF The initial energy of the capacitor, U0=0.2 J The…
Q: Referring to the given figure where V= 6 V, use source transformation to determine the current and…
A:
Q: A television set connected to a 120 V outlet consumes 35 W of power. Part A How much current flows…
A:
Q: A heating element in a stove is designed to dissipate 2,960 W when connected to 240 V. (a) Assuming…
A: Given that, The power dissipated in the heating element, P=2960 W Voltage, V=240 V. The power…
Q: Giant electric eels can deliver a voltage shock of 5.00 × 10² V and up to 1.00 A of current for a…
A: Finding maximum Power Deliver voltage V = 5.00×102 V Current I = 1.00 A Now the maximum power a…
Q: A large capacitor of 1000 µF is charged by a steady current of 1 mA until it reaches a voltage of…
A: Given:- The capacitance C =1000 μF The current I = 1mA = 1 x 10-3 A Voltage 100 V Find:- a)The how…
Q: e. An electric hot plate has a power output of 1.34 kW when connected to a 94.63 V source. What is…
A: As we know, P=V.I Where P=power =1.34kW V= voltage = 94.63v
Q: The resistance of the skin on a person's finger is typically about 37,000 N. How much voltage would…
A: According to Ohm's law, the current through a conductor between two points is directly proportional…
Q: Part A A 100-W, 120-V lightbulb has a resistance of 12 SN when cold (20 °C) and 150 N when on (hot).…
A: V = 120 volts P = 100 W Resistance of lightbulb when cold (R) = 12 ohm Resistance of lightbulb when…
Q: Two resistors of equal resistance R are connected in parallel across a cell with emf V. What is the…
A: Given : Two resistors of equal resistance R are connected in parallel across a cell with emf V.
Q: Part A. NOTE: The sign of the current in a network problem depends on the direction you pick as…
A: Assume the direction of current flow in the circuit Let the current through resistor R1 be I1, R2…
Q: The resistors in the circuit below have the following values: R, = 8.10 N, R, = 7.00 N, and R3 =…
A: The voltage of each battery= 3 V R1=8.1 ohms R2=7 ohms R3=3.5 ohms
Q: Before a load is applied, the terminal (total) voltage of a power supply is measured to be 40 V.…
A: Given that, Total voltage = 40 V Load = 500 Voltage across the load = 36 V
Q: An electric device draws 7.50 A at 240 V. Part A If the voltage drops by 11 % , what will be the…
A: Given: Current, Iinitial=7.50 A Potential, Vinitial=240 V PART A: OHM'S LAW is given as; V=IR So,…
Q: The resistors in the circuit below have the following values: R, = 7.10 N, R, = 7.00 N, and R, =…
A:
A ΔV = 2.3 V battery loses E = 5.5 J of energy each day (t = 24 hrs) powering a cell phone.
a) Input an expression for the average current, I, supplied to the phone.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- A 10 μF capacitor with an initial energy of 0.1 J is discharged through a 7.5 MΩ resistor. What is the initial charge on the capacitor? The charge, Q0 = Units . What is the current through the resistor when the discharge starts? The current, I0 = Units . Determine the potential difference across the capacitor and the rate at which the thermal energy is dissipating in the resistance 0.9 min after the discharge starts. The potential difference across C, VC = Units . The power dissipated in R, P = Units .When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 8.5 h before the battery is depleted. Part A. What is the current delivered by the battery to the computer?Express your answer with the appropriate units. Part B. How much energy, in joules, is this battery capable of supplying?Express your answer in joules. Part C. How high off the ground could a 75 kg person be raised using the energy from this battery?Express your answer with the appropriate units.The capacitance of a parallel-plate capacitor is proportional to the area of its plates and inversely proportional to the plate separation. O True O False The drift speed of electrons in a copper wire carrying 10 A current is much greater than 1 m/sec. O True O False The electric power dissipated in a resistor is eventually converted to kinetic energy of charges. O True O False
- Referring to the given figure where V= 21 V, use source transformation to determine the current and power absorbed by the 8-0 resistor. 32 ww 82 3 A 102 The current absorbed by the 8-0 resistor is The power absorbed by the 8-0 resistor is A. W. wwPart A A 8.8×10-4 V/m electric field creates a 4.9x1017 electrons/s current in a 1.8-mm-diameter aluminum wire. What is the drift speed? Express your answer using two significant figures. "να ΑΣφ ? va = m/s Submit Request Answer Part B What is the mean time between collisions for electrons in this wire? Express your answer using two significant figures. T = Submit Request AnswerA capacitor with a capacitance of 3.5 μF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 19 kΩ, and a battery that has a potential difference of 170 V. What is the charge Q, in microcoulombs, on the capacitor when the current in the resistor equals one half its maximum value.
- A typical cellular phone consumes an average of about 1.32 W of electrical power and operates on 3.80 V. HINT (a) What average current (in A) does the phone draw from its battery? A (b) Calculate the energy (in J) stored in a fully charged battery if the phone requires charging after 9.03 hours of use. JAn unknown resistor is connected between the terminals of a 3.00 V battery. Energy is dissipated in the resistor at the rate of 0.670 W. The same resistor is then connected between the terminals of a 1.50 V battery. At what rate is energy now dissipated? Number i Units