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( 1 ) All the voltage drops and the source voltage added together in a series circuit is equal to
- 1) the total of the source voltage and the voltage drops
- 2) zero
- 3) the source voltage
- 4) the total of the voltage drops
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Show Answer Report Discussion in forumAnswer : 2) zero
Solution : All the voltage drops and the source voltage added together in a series circuit is equal to zero
discussion
Answer : 2) zero
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( 2 ) A device that opens and closes a circuit is a __________.
- 1) conductor
- 2) switch
- 3) volt
- 4) electrical current
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Show Answer Report Discussion in forumAnswer : 2) switch
Solution : A device that opens and closes a circuit is a volt.
discussion
Answer : 2) switch
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( 3 ) A voltmeter should be connected to a circuit in __________.
- 1) series
- 2) short form
- 3) series-parallel
- 4) parallel
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Show Answer Report Discussion in forumAnswer : 4) parallel
Solution : A voltmeter should be connected to a circuit in parallel.
discussion
Answer : 4) parallel
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( 4 ) A circuit that has only one electric flow is _________.
- 1) parallel circuit
- 2) series circuit
- 3) battery circuit
- 4) paper circuit
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Show Answer Report Discussion in forumAnswer : 2) series circuit
Solution : A circuit that has only one electric flow is series circuit.
discussion
Answer : 2) series circuit
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( 5 ) In a parallel circuit containing set of bulbs, if one of the bulb blew up the effective resistance offered will:
- 1) Fluctuate
- 2) Decrease
- 3) Increase
- 4) Remains same
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Show Answer Report Discussion in forumAnswer : 3) Increase
Solution : In a parallel circuit containing set of bulbs, if one of the bulb blew up the effective resistance offered will Increase
discussion
Answer : 3) Increase
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( 6 ) Which of the following quantity remains in parallel circuit:
- 1) Voltage
- 2) Current and Voltage
- 3) Current
- 4) none of these
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Show Answer Report Discussion in forumAnswer : 2) Current and Voltage
Solution : Current and Voltage remains in parallel circuit
discussion
Answer : 2) Current and Voltage
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( 7 ) The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates
- 1) 3 W
- 2) 8 W
- 3) 12 W
- 4) 48 W
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Show Answer Report Discussion in forumAnswer : 1) 3 W
Solution : Total power p = 12
All equal value resistors so
p= p1 = p2 = p3 = p4
total power p = p + p + p + p
12 = 4p
p = 12/4
p = 3 w
discussion
Answer : 1) 3 W
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( 8 ) To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed
- 1) between the second and third resistors
- 2) at the negative terminal of the source
- 3) between the third and fourth resistors
- 4) at any point in the circuit
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Show Answer Report Discussion in forumAnswer : 4) at any point in the circuit
Solution : To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed at any point in the circuit
discussion
Answer : 4) at any point in the circuit
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( 9 ) What determines the total resistance in a series circuit?
- 1) the sum of the resistors
- 2) the largest resistor minus the smaller
- 3) the smallest resistor
- 4) the largest resistor
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Show Answer Report Discussion in forumAnswer : 1) the sum of the resistors
Solution : The sum of the resistors determines the total resistance in a series circuit.
discussion
Answer : 1) the sum of the resistors
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( 10 ) If two resistors have the same voltage drop in a series circuit, it means:
- 1) they are of unequal value
- 2) they are connected in parallel
- 3) the voltage has doubled
- 4) they are of equal value
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Show Answer Report Discussion in forumAnswer : 4) they are of equal value
Solution : If two resistors have the same voltage drop in a series circuit, it means they are of equal value.
discussion
Answer : 4) they are of equal value
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