# Physics-College

posted by .

You have a 50V battery in a circuit with a single resistor R. If the resistor dissipates 200 J of energy in 5 seconds, what is its resistance?

• Physics-College -

The power is P = E/time = 40 watts

Use P = V^2/R to solve for R.

## Similar Questions

1. ### Physics

1)If a resistor is added to a parallel circuit, the equivalent resistance: A)increases B)decreases C)remains the same D)becomes zero I got B 2)A 10.0 resistor, 20.0 resistor, and 25.0 resistor are connected in series across a 110-V …
2. ### College Physics

A single resistor is wired to a battery. Define the total power dissipated by this circuit as P(initial). What is the Power?
3. ### physics

A resistor is connected across the terminals of a 6.00-V battery, which delivers 3.50 105 J of energy to the resistor in 11 hours. What is the resistance of the resistor?
4. ### Physics

Three resistors having the same resistance value are wired in parallel. How does the equivalent resistance compare to the resistance value of a single resistor?
5. ### physics

Each of the four circuits in the drawing consists of a single resistor whose resistance is either R or 2R, and a single battery whose voltage is either V or 2V. The unit of voltage in each circuit is V = 10 V and the unit of resistance …
6. ### Physics

A circuit consists of a self inductor of L=0.003 H in series with a resistor R1=5 Ohm. Parallel to these is a resistor R2=10 Ohm. A battery of V0=9 volt is driving the circuit. Current has been running for 10 minutes. (a) How much …
7. ### Physics

A 10.0 Ω resistor is hooked up in series with an 8.0 Ω resistor followed by a 27.0 Ω resistor. The circuit is powered by a 9.0 V battery -Calculate the equivalent resistance. -Calculate the voltage drop across each resistor …
8. ### physics

A series circuit consist of 6 ohms resistor,ammeter and battery. The current in the circuit is 0.5A but drops to 0.3A when another resistor of 8ohms is added in series. Find the battery e.m.f and its internal resistance?
9. ### Physics

a)In the series circuits, what do you notice about the voltage across each resistor compared with the voltage of the battery?
10. ### physics

a battery has internal resistace of 4ohm and the emf is 12v .The battery used to maintain a current in a resistor of resistance of 20 ohm a)Calculate the current in the circuit b)the potential difference across the ends of the 20 ohm …

More Similar Questions