Suppose you have a 2.7 V flashlight. What current, in amperes, flows through the bulb of the flashlight when its resistance is 3.95 Q?
Q: How much current flows thru a 6 Ω resistor in 4 minutes if it is connected to a 9V battery ?
A: Given : R = 6 Ω t = 4 minutes = 4 x 60 = 240 seconds V = 9 V
Q: 20. A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the…
A:
Q: If the battery in the circuit below is 9.77V, resistor R1=83.862, and resistor R2=59.65N, what is…
A:
Q: Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline…
A: The current :I = 0.711 A The power :P = 1.06 wattsExplanation:Approach to solving the…
Q: The battery of an electronic device has an emf of 1.6V and internal resistance of 1.46ohm. How much…
A: The circuit is as shown in the above figureVoltage of the battery, VB = 1.6 Vinternal resistance, r…
Q: How many watts does a flashlight that has 6.00×102 C pass through it in 0.500 h use if its voltage…
A: Power is product of current and potential . P=IV .....1 where I is current V is…
Q: A taser sends about 1100 V through the human body, resulting in an average current of 2.5 mA. From…
A: Human body acts as an electrical resistance when voltage is applied through it. Because of the…
Q: How many watts does a flashlight that has 6.00×102C pass through it in 0.500 h use if its voltage is…
A: Given, Charge 6.00*102 C Time t is 0.500 hours And voltage is 3.00 V
Q: A technician is troubleshooting a problem in an electrical circuit. Sevenidentical air conditioners…
A: Given data The total current flowing through the conditioners is IT = 12.845 A. The number of…
Q: If the battery in the circuit below is 7.16V, resistor R1=331.15, and resistor R2=51.49N, what is…
A:
Q: Two resistors are connected in parallel with an 96 volt battery. The resistors have values of R1 =…
A:
Q: What current flows through a 1.50-cm diameter of pure copper wire (p = 1.70×10-8 Ω⋅m) that is 14.0…
A: In this case, the diameter and length of the copper wire are given. And the resistivity of the wire…
Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…
A: We know that V=IR where V= voltage…
Q: The amount of charge flowing through a particular conducting wire is represented by the equation q…
A: charge through a wire is given by :q(t) = at3 + bt2 + c a = 5 A/s2b = 3 A/s At t= 0.9 seconds ,…
Q: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.492,…
A: Given that - EMF of the battery Internal Resistance of the battery To Find - We have to determine…
Q: An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are…
A:
Q: Each of the resistors in the circuit has a resistance of 2.0 SN. The cell has a voltage of 3.0V. The…
A: The relation between the voltage and current and the resistance is V = I R where, I is the current…
Q: While taking a bath, a person touches the metal case of a radio. The path through the person to the…
A: Resistance is The minimum current for ventricular fibrillation is Note:Find:The minimum voltage that…
Q: resistance of an electric heater is 45 Ω when connected to 120 V. How much energy does it use…
A:
Q: A lamp is connected to a 120 V line. When the switch is first turned on and the filament is cold,…
A: Given data The voltage to which lamp is connected is given as V = 120 V. The Current flowing…
Q: How many electrons pass through the filament during this time?
A: Given: Current is I=479 mA Time t=8.66 s The magnitude of charge on one electron is qe=1.602×10-19 C…
Q: A light bulb has resistance of R= 150 Q and has a current of /= 1.1 A passing through it Express the…
A: Power in terms of I and R. Numerical value of Power(P) in W. Given, ResistanceR=150 ΩCurrentI=1.1 A…
Q: A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when…
A:
Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.00 A. Assuming the…
A: Given data: Voltage (V) = 120 V Current (I) = 5.00 A Mass (m) = 0.300 kg Initial temperature (Ti) =…
Q: What current flows through a 0.50 mm diameter rod of annealed Copper that is 90.0 cm long, when 12 V…
A: Resistance is given by: R = ρ*L/A ρ = resistivity of annealed copper = 1.72*10^-8 ohm-m L = length…
Q: A power trans line is hung wers with glass ving 2. What current (in mA) flows through the insulator…
A: Given: The resistance of the metal tower is 2.8×109 Ω. The potential difference is 160 kV.
Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…
A: Solution: The current flow through the insulator can be obtained by using Ohm's law. Ohm's law is…
Q: During open-heart surgery, a defibrillator can be used to bring a patient out of cardiac arrest.…
A:
Q: If the 0.140 mm diameter tungsten filament in a light bulb is to have a resistance of 0.290 Ω at…
A:
Q: A high-voltage electricity transmission line is hung from metal towers with glass insulators having…
A: Given Resistance of wire = 0.85 × 109 Ω Applied voltage = 180 kV We have to calculate the current
Q: . A certain lightbulb has a tungsten filament with a resistance of 19.0 N when at 20.0°C and 140 N…
A:
Q: A 9 V battery costs $1.49, and will run a portable CD player for 6 hours. Suppose the battery…
A: The objective of the question is to calculate the cost of the energy in dollars per kilowatt-hour…
Q: An ion channel in a cell membrane carries 2.4 pA when it's open, which is only 20% of the time. (a)…
A: Solution of part A The average current is given by Iavr = 2.4×10-12×20100Iavr = 0.48×10-12 AIavr =…
Q: An electric heater carries a current of 19.0 A when operating at a voltage of 3.60 ✕ 102 V. What is…
A:
Q: A 60-watt light bulb shines at full power when it is connected to a constant power supply producing…
A: Given value--- power = 60 W . Voltage = 100 V . We have to find--- current ?
Q: R2 В >I R1 I- A
A:
Q: A meter measures a current of 9.33x10^14 electrons flowing past a point each second. Express this in…
A: Let the number of electrons is denoted by n, the charge is denoted by q, and the time taken is…
Q: A charge of Q = 4.2 C passes through a wire every t = 5.5 s. Question A) Input an expression…
A: Given data: Charge (Q) = 4.2 C Time (t) = 5.5 s Required: Current (I)
Q: The battery of an electronic device has an emf of 9.6V and internal resistance of 1.36 ohm. How much…
A: Emf of battery (E) = 9.6 volts Internal resistance (R) = 1.36 ohm Energy (e) = 856.6 Joules Time (t)…
Q: A human being can be electrocuted if a current as small as 53.0 mA passes near the heart. An…
A: This question is based on Current Electricity Topic. According to Ohm's Law the relation between…
Q: Four 2.2 V cells are connected in series to a 8.0 N light bulb. If the resulting current is 0.75 A,…
A:
Q: An electric hot plate has a power output of 2.71 kW when connected to a 93.53 V source. What is the…
A:
Q: A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage under…
A: Given V at Operating temperature- 2.9V Current at Operating temp- 0.30A R1 = Resistance at room…
Q: An electric hot plate has a power output of 1.39 kW when connected to a 90.62 V source. What is the…
A: Given, Power (P)=1390 W Voltage(V) = 90.62 V
Q: In the evening, the student turns on a 38-W table lamp, plugs in a 167-W computer to study physics,…
A: Power of lamp is Power of computer is Power of coffee maker is Note:The voltage in household…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
