If a 15-ohm resistor is connected in parallel with a 30.-ohm resistor, the equivalent resistance is (1) 15 N (2) 2.0 N (3) 10. N (4) 45N

Q: A certain wire is used in electric heaters has a resistance of 1.75 Ohm/ft. How much wire is needed…

A: Given data The resistance of the wire is R = 1.75 ohm/ft The magnitude of the current is I = 8.25 A…

Q: All of the electrical outlets in a room are connected in a single parallel circuit. The circuit is…

A: Given : I = 20 A V = 220 V P = 1300 W

Q: A battery has an emf of 25 V and an internal resistance of 0.02 Q. Its terminals are connected to a…

A: Given Data Emf of the battery is V=25 V Internal resistance is r=0.02 Ω Load resistance is RL=9.2 Ω…

Q: A device operating at a potential difference of 1.5 volts draws a current of 0.20 ampere. How much…

A: Given Data: The potential difference is: V=1.5 V The current in the circuit is: I=0.20 A The time…

Q: 6. 6. 3 6. 2 12 18 V Find the potential difference across the 4 ohm resistor.

A: In the given question, given that a circuit and We have to determine the potential difference across…

Q: What battery voltage is necessary to supply 0.63 A of current to a circuit with a resistance of 24…

A: Given data: Current (I) = 0.63 A Resistance (R) = 24 Ω Required: Battery voltage (V)

Q: 49. A 4-ohm resistor and an 8-ohm resistor are connected in series. If the current through the 4-ohm…

A: Given, A 4-ohm resistor and 8-ohm resistor are connected in series . The current through the 4-ohm…

Q: A battery having an emf (ɛ) of 12V provides a current of 86mA when connected to a load of 1260. i)…

A:

Q: The amount of current in a LED bulb rated 10.5 W 120 V is A) Less than 1A B) More than 1A C) About…

A: Power(W) is given by the formula P = V.I  Where V= potential difference at the ends of conductor I =…

Q: Four 50 resistors are connected in parallel. The equivalent resistance of the combination is

A: The equivalent resistance in the parallel combination is  1R=1R'+1R''

Q: About 30,000 J of energy is stored in a typical 1.5-V D-cell battery. If two such batteries are…

A:

Q: Two appliances are connected in parallel to a 120-V battery and draw currents I₁ = 2.0 A and I₂ =…

A: I1 = 2 A I2 = 3.5 A Vbattery = 120 volts

Q: A resistor of 5 ohm, another 5 ohm and 10 ohm are connected in parallel across a 12 V battery with…

A: resistors of resistances, R1 = 5 ohm and R2 = 10 ohm internal resistance, r = 0.2  ohm battery…

Q: A circuit in a TV has an overall resistance of 25.3 Ω. The current in the circuit is 4.69 A. How…

A: Power is,

Q: A motorcycle battery supplies 12V to power the engine. If the engine contains 5.5 ohms of…

A: Given Data: The supplied voltage to a battery is, V=12 V The resistance of the engine is, R=5.5 Ω…

Q: What voltage produces a current f 500 amps with a resistance of 50 ohm

A: From Ohm’s law:

Q: Three batteries, each having a voltage of 2.0 V, are connected in series. What is the total voltage…

A: For batteries in series , Equivalent voltage = E1 + E2  + E3 [If they are connected such that…

Q: How much current would a 10 2 bread toaster draw when connected to a 120 V outlet? 75 W stereo for…

A:

Q: For electric power that costs 10 cents per kilowatt hour, the cost of operating a 110-V heater that…

A: Given : Cost per kilowatt hour = 10 cents Voltage (V) = 110 V Current (I) = 20 A Time (t) = 10 hours

Q: About 30,000 J of energy is stored in a typical 1.5-V D-cell battery. If two such batteries are…

A: The given data are: E=30000 JV=3 VI=3 A Here, E denotes the energy stored in a single battery, V…

Q: A 5 W, a 20 W, and a 25 W resistor are connected in series and placed across a 120 V potential…

A:

Q: A battery of emf 10 V and internal resistance 3 2 is connected to a resistor. If the current in the…

A: Given, emf of battery = 10V Internal resistance, r = 3Ω Current in circuit, I = 0.5 A Let resistance…

Q: Three resistors of 50 ohms, 100 ohms, and an unknown resistance R are connected in parallel and the…

A:

Q: A service station charges a battery using a current of 5.7 Amperes for 7.0 hours. how much charge…

A: Current passed, I=5.7A Time interval, t=7hours⇒25200s Let charge flown be Q.

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 16.0 ohm. When they are…

A:

Q: 38. The current passing through a resistor in a circuit is 0.01A when the voltage across the same…

A: Given data:  Current (I) =  0.01 A Voltage (V) = 5 V New voltage (V1) = 7.5 V Required: New current…

Q: A flashlight bulb is rated 2.0 V, 0.23 A. How much power is required to operate the light bulb?…

A: Power is,

Q: 24 cells of emf 1.5V each having internal resistance of 1 ohm are connected to an external…

A:

Q: A 9.00-volt battery is used to power a parallel circuit with a 2.50 Ω and a 3.50 Ω resistor.…

A: Given: Electric Potential of battery (V) = 9.00 VThe resistance of resistor 1 (R1) = 2.50 ΩThe…

Q: In a circuit of 110 volts and 50 amps, how much power is used? Select one: O a. 5.5 kW O b. 5500 kW…

A: We need to find the power used given the value of current and voltage.

Q: An electric heater carries a current of 14.0 A when operating at a voltage of 1.80 × 102 v. What is…

A: Given, Current=14A Voltage=1.80×10^2v Resistance=?

Q: A 10-ohm resistor has a constant current. If 1,200 C of charge flow through it in 4 minutes what is…

A: Given data:  Charge (q) = 1200 C Time (t) = 4 minutes Required: Current (I)

Q: Two resistors (202, and 602) are connected in parallel across a 9-Volts battery, what is the total…

A: Given: Resisitors 2Ω and 6Ω are connected in parallel combination           Voltage across the…

Q: Calculate the voltage necessary to supply a current of 6 Amp through a 40 ohm resister.

A: The expression for the required voltage is,

Q: How much voltage is needed to run a current of 0.69 Amperes in a 959-Ohm resistor? Assume negligible…

A: Given: The current in the Cricut is 959 Ohm. The current in the circuit is 0.69 A.

Q: A 9.00-volt battery is used to power a series circuit with a 2.50 Ω and a 3.50 Ω resistor. Determine…

A: Given:  V = 9 V  R1 = 2.5 ohm  R2 = 3.5 ohm

Q: Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm…

A: Total emf = 3 x 4 = 12 V Total resistance = 6 + 3r Current in the circuit = 2 A

Q: Two resistors of 15 and 302 are connected in parallel. If the combination is connected in series…

A: 15 Ω and 30 Ω resistor are connected in parallel.  This combination is in series with 9 V battery…

Q: Each cell in the figure has an emf of 2.18 volts and an internal resistance of 0.130 ohms. Calculate…

A: Each cell in the figure has an emf of 2.18 volts and an internal resistance of 0.130 ohms

Q: Two identical resistors, each of 10 ohm, are connected in parallel. This combination, in turn, is…

A: Resistors in parallel be R1 and R2 R1 = R2 = 10 ohm For resistance in parallel  , equivalent…

Q: Three resistors are connected in series to a 110 volt source. If R1 = 6 ohms and the voltage across…

A:

Q: Three 50 resistors are connected in series. The equivalent resistance of the combination is

A: The given value of the resistance is, R1=R2=R3=R=50 Ω

Q: Six lead-acid type of secondary cells each of emf 2.0 V and internal resistance 0.015 Ω are joined…

A: It is given that,

Q: A 10-ohm resistor has a constant current. If 1,200 C of charge flow through it in 4 minutes what is…

A:

Q: A 12-V battery is connected to a circuit. What is the total current in the circuit if the power…

A: Given data The potential is given as V = 12 V. The power output is given as P = 0.2 W.   The…

Q: A 12 V battery of 0.15-ohm resistance and another battery of 12 V and 0.2-ohm resistance supply…

A: V1 = 12 volts V2 = 12 volts r1 = 0.15 ohm r2 = 0.15 ohm R = 6 ohm