Which bulb, if either, in a parallel circuit is brighter? A.left bulb B.right bulb C.They have equal brightness.
The brightness of bulbs in parallel ___ to the standard brightness. A.is dimmer than B.is the same brightness as C.is brighter than
The current from the battery with the bulbs in parallel is ____ than the standard current. A.less than B.equal to C.greater than
The resistance in the circuit with the bulbs in parallel is ____ that the standard resistance. A.less than B.equal to C.greater than
circuit 1 A) circuit 1 circuit 2 B) circuit 2 both the same C) both the same it depends on R D) it depends on R The lightbulbs in the circuit below are identical with the same resistance R. Which circuit produces more light? (brightness power)
A) increases B) remains the same C) decreases D) drops to zero Points P and Q are connected to a battery of fixed voltage. As more resistors R are added to the parallel circuit, what happens to the total current in the circuit?
9 V Assume that the voltage of the battery is 9 V and that the three resistors are identical. What is the potential difference across each resistor? A) 12 V B) zero C) 3 V D) 4 V E) you need to know the actual value of R
12 V R 1 = 4 R 2 = 2 In the circuit below, what is the voltage across ? In the circuit below, what is the voltage across R 1 ? A) 12 V B) zero C) 6 V D) 8 V E) 4 V
In the circuit to the right, what is the current through ? In the circuit to the right, what is the current through R 1 ? 10 V R 1 = 5 R 2 = 2 A) 10 A B) zero C) 5 A D) 2 A E) 7 A