Practice Test: Question Set - 01
1. There are five resistors in a given series circuit and each resistor has 6 V dropped across it. The source voltage is
- (A) 6 V
- (B) Depends
on the current flow
- (C) Depends
on the resistor values
- (D) 30 V
2. To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed
- (A) Between
the second and third resistors
- (B) At
the negative terminal of the source
- (C) Between
the third and fourth resistors
- (D) At any point
in the circuit
3. The voltage at one point in a circuit is always measured relative to another point.
- (A) True
- (B) False
4. A series circuit consists of three resistors. Two resistors are 1.2 kΩ each. The total resistance is 12 kΩ. The value of the third resistor is
- (A) 9,600 Ω
- (B) 960 Ω
- (C) 1.2
kΩ
- (D) Cannot
be determined
5. If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.
- (A) True
- (B) False
6. The total resistance of a circuit is 680 Ω. The percentage of the total voltage appearing across a 47 Ω resistor that makes up part of the total series resistance is
- (A) 68 %
- (B) 47 %
- (C) 69 %
- (D) 6.91 %
7. The sum of all the voltage drops around a single closed loop in a circuit is zero.
- (A) True
- (B) False
8. All the voltage drops and the source voltage added together in a series circuit is equal to
- (A) The
total of the voltage drops
- (B) The
source voltage
- (C) Zero
- (D) The
total of the source voltage and the voltage drops
9. The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates
- (A) 12
W
- (B) 48 W
- (C) 3 W
- (D) 8 W
10. A certain series circuit consists of a 1/8 W resistor, a 1/4 W resistor, and a 1/2 W resistor. The total resistance is 1200 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is
- (A) 27
mA
- (B) 2.7 mA
- (C) 19 mA
- (D) 190 mA
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