A 3 Q resistor having 2 A current will dissipate the power of_______________?

Related Mcqs:

1. In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is

   A. 33 V
   B. 66 v
   C. 80 V
   D. 132 V

2. You have to replace 1500 Q resistor in radio. You have no 1500 Q resistor but have several 1000 Q ones which you would connect__________?

   A. two in parallel
   B. two in parallel and one in series
   C. three in parallel
   D. three in series

3. An open resistor, when checked with an ohm-meter reads_____________?

   A. zero
   B. infinite
   C. high but within tolerance
   D. low but not zero

4.  If P is the power of a star connected system then what will be power of an equivalent delta connected system?

   A. P
   B. 3P
   C. P/3
   D. None of the above

   Updated by: muhammad rahim

5. A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is_____________?

   A. 6.4 A, 6.9 A
   B. 6.4 A, 9.6 A
   C. 4.6 A, 6.9 A
   D. 4.6 A, 9.6 A

6. A resistance having rating 10 ohms, 10 W is likely to be a__________?

   A. metallic resistor
   B. carbon resistor
   C. wire wound resistor
   D. variable resistor

7. Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be_____________?

   A. 160 ohms
   B. 80 ohms
   C. 20 ohms
   D. 10 ohms

8. are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators______________?

   A. Varistors
   B. Thermistor
   C. Semi-conductors
   D. Variable resistors

9. Instantaneous power in inductor is proportional to the

   A. product of the instantaneous current and rate of change of current.
   B. square of instantaneous current.
   C. square of the rate of change of current.
   D. Temperature of the inductor.

10. With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals_____________?

    A. 10 W
    B. 20 W
    C. 40 W
    D. 60 W