The sticker on a compact disc player says that it draws 288 mA of current when powered by a 9 Volt battery. What is the power (in Watts) of the CD player?

Q: An electric heater is constructed by applying a potential difference of 140.7V across a wire with a…

A: we know that;powerP=V2R

Q: Сарacitance (pF) Resistance (Ohm) Time Constant (sec) Frequency (f) 1 1k 1x10-9 1 GHz 2.5 2.2k…

A:

Q: A handheld electric fan operates on a 3.00-V battery. If the power consumed by the fan is1.77 W,…

A: Voltage, V = 3 V  Power, P = 1.77 W

Q: How much energy per unit time does a 6.0 V portable radio use if it draws 250 mA of current?

A: Given data :-                                Voltage V = 6 volt…

Q: A 3-volt battery supplies a light bulb with 1.8 J of energy each second. Find the current that flows…

A: Concept: Given: Power (P)= 1.8 J/s emf ε= 3 volt The Formula to determine the current will be,…

Q: circuit consists of 3 branches. The first branch has a 20.0V battery and a 4.6Ω resistor. The second…

A: Given: For first branch - Voltage = 20 v Resistance, R1 = 4.6 ohm For Second branch- Resistance, R2…

Q: A heater is rated as 240 V, 10 kW. How much current does it draw?

A:

Q: The current price of gold costs $58,887.31 per kilogram while silver costs $864.19 per kilogram. The…

A: Length of the wire L=10 m Resistivity of gold and silver are  dG=1.24dsThus,…

Q: A color television set draws about 1.9 A when connected to a 220-V source. What is the cost (in…

A: Power of television is P=IV=1.9 A220V=418 W=0.418 kW

Q: An electric heater is constructed by applying a potential difference of 121.2V across a wire with a…

A: Given that the value of potential difference and resistance. Then We have to determine the value of…

Q: A 10-W light bulb is connected across 40 V. What current will flow through this bulb? 400 A 0.25 A…

A:

Q: During an electricity investigation, a student stated, “When the voltage increases current…

A: Given data:  When the voltage increases current increases Required: The equation that describes the…

Q: Each day, a current of 18.0 A flows through an 8.00 Q device. How much does this device cost in a…

A: Here given a device of resistance 8 Ω .The flow of current is 18 A. We have to calculate how much…

Q: A 149.7 V battery is hooked to a 25Ω resistor. What is the resulting current (in A).

A: According to ohm's law   Potential difference = Current * Resistance Therefore, current (I)…

Q: A compact fluorescent lamp (CLF) uses less energy than its equivalent incandescent bulb. How much…

A:

Q: What power (in kW) is supplied to the starter motor of a large truck that draws 235 A of current…

A:

Q: What is the current drawn by a 9.60 Ohm hair dryer, which uses 5.40 x 10$ Joules of energy, if it is…

A: Given: Resistance (R) = 9.6 ohms Energy used (E) = 5.40 x 105 J Time used (t) = 6 minutes = 360 sec…

Q: 3 4 6 V 6Ω 8 7 6 What is the voltage across the 4 W branch? Volts (Do not include units) What is the…

A:

Q: Four 8.0-KW resistors are connected in parallel. What is their equivalent resistance? 0.054 KW О.13…

A: Given  Resistance R1=R2=R3=R4=8kW

Q: A 33.0 V battery is connected in series with a(n) 2.5 Ohm resistor, a(n) 14.0 Ohm resistor and a(n)…

A:

Q: The current ia in the circuit shown in the figure is 4.0 mA . (Figure 1) {2 ΚΩ 1 ΚΩ 3 ΚΩ www Σ4 ΚΩ

A: Given, The current,  ia=4mAia=4×10-3A Now, -2i0+1×ia+4×ia+3×ia=02i0=8ia2i0=8×4i0=16mA

Q: What is the resistance (in MΩ) of the path?

A:

Q: A 3.8 A current is set up in a circuit for 8.8 min by a rechargeable battery with a 6.0 V emf. By…

A: Power in an electrical circuit is given by P = V×i, where V = the voltage or emf in the circuit and…

Q: he Voltage of a laptop charger is 15.5 V; it draws a current Of 3.41 A. How much power can it…

A: Given Voltage of a laptop charger is V=15.5V Current is I=3.41 A Find the power delivered to the…

Q: A current of 0.50 A passes through a lamp with a resistance of 600 Ω. The power supplied to this…

A: Current through the bulb is I = 0.5 A Resistance of bulb is R= 600 Ω

Q: A circuit consists of 3 branches. The first branch has a 39.9V battery. The second branch has a…

A:

Q: Electrons in an x-ray tube are accelerated through 134 kV and directed toward a target to produce…

A:

Q: What is the power in watts of a 2.40 ✕ 102 MV lightning bolt having a current of 1.87 ✕ 104 A?

A: Given,Vo=2.4*102MV or 2.4×108VoltsIo=1.87×104A

Q: In a Geiger tube, the total time taken to create a pulse and then I the electrons recombine with the…

A: In G. M. Tube , slow positive ion takes 100μs to reach at cathode. If in this time, any other ion…

Q: A flashlight bulb is connected to a dry cell of voltage 4.50 V. It draws 15.0 mA (1000 mA = 1 A).…

A:

Q: The resistance of a galvanometer is 50 oh and the maximum current which can be passed through it is…

A: GivenResistance of Galvanometer, RG=50 ohmCurrent passing through Galvanometer, IG=0.002 ACurrent,…

Q: A 850 ft. conductor with a diameter of 0.08 inches has a resistance of 79.7 Ω @ 20°C. What material…

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: an air conditioner runs on 230.0V voltage and draws an average current of 2.80. A. how much does it…

A:

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…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.