Parallel plate capacitor is connected to a battery. If the area of the plates of
ID: 2077806 • Letter: P
Question
Parallel plate capacitor is connected to a battery. If the area of the plates of the capacitor is doubled and the separation between the plates decreased by a factor of 3, how does the capacitance change? a. C_new = 6 C_old b. C_new = 1/6 C_old c. C_new = 2/3 C_old d. C_new = 3/2 C_old e. other If C = 36 mu F, determine the equivalent capacitance for the combination shown. (time saving solve analytically then plug in numbers) a. 36 mu F b. 32 mu F c. 28 mu F d. 24 mu F e. other A current of 0.50 A passes through a lamp supplying it with 150 W of power. What is the resistance of the lamp? a. 17.3 Ohm b. 75 Ohm c. 300 Ohm d. 600 Ohm e. other If two elements of a circuit are in parallel, they must have the same: a. charge. b. potential difference across them. c. resistance (or capacitance if they are capacitors) d. potential difference across them and the same charge. c. current In the circuit shown, resistors R1 and R2 are: a. in series b. in parallel c. neither in series nor in parallel d. could be in series or in parallel depending on how current flows in the circuit. e. must have same resistanceExplanation / Answer
11) A current of 0.50 A passes through a lamp supplying it with 150W of power what is the resistance of the lamp ?
c) 300Ohm
12) If two elements of a circuit are in parallel they must have the same
b) Potential difference across them
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