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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

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



( 2 ) A device that opens and closes a circuit is a __________.
 1) conductor
 2) switch
 3) volt
 4) electrical current

Show Answer Report Discussion in forumAnswer : 2) switch
Solution : A device that opens and closes a circuit is a volt.
discussion
Answer : 2) switch



( 3 ) A voltmeter should be connected to a circuit in __________.
 1) series
 2) short form
 3) seriesparallel
 4) parallel

Show Answer Report Discussion in forumAnswer : 4) parallel
Solution : A voltmeter should be connected to a circuit in parallel.
discussion
Answer : 4) parallel



( 4 ) A circuit that has only one electric flow is _________.
 1) parallel circuit
 2) series circuit
 3) battery circuit
 4) paper circuit

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



( 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

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



( 6 ) Which of the following quantity remains in parallel circuit:
 1) Voltage
 2) Current and Voltage
 3) Current
 4) none of these

Show Answer Report Discussion in forumAnswer : 2) Current and Voltage
Solution : Current and Voltage remains in parallel circuit
discussion
Answer : 2) Current and Voltage



( 7 ) The total power in a certain circuit is 12 W. Each of the four equalvalue series resistors making up the circuit dissipates
 1) 3 W
 2) 8 W
 3) 12 W
 4) 48 W

Show Answer Report Discussion in forumAnswer : 1) 3 W
Solution : Total power p = 12
All equal value resistors so
p= p_{1} = p_{2} = p_{3} = p_{4}
total power p = p + p + p + p
12 = 4p
p = 12/4
p = 3 w
discussion
Answer : 1) 3 W



( 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

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



( 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

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



( 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

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
