• ( 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
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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) series-parallel
    • 4) parallel
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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 equal-value series resistors making up the circuit dissipates

    • 1) 3 W
    • 2) 8 W
    • 3) 12 W
    • 4) 48 W
    • Discussion in forum
      Answer : 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

    • ( 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
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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
    • Discussion in forum
      Answer : 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





Top