11 DECEMBER 2021 CURRENT AFFAIRS QUIZ

If it takes 400 ms to use 12,000 J of energy, the power is

30 kW

30 W

300 kW

3 W

TRUE ANSWER : ?
YOUR ANSWER : ?

A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?

938 Wh

0.938 Wh

5.6 Wh

56.25 Wh

TRUE ANSWER : ?
YOUR ANSWER : ?

A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is

2.1 Ah

0.58 Ah

21 Ah

58 Ah

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YOUR ANSWER : ?

At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power?

535 kWh

1.286 kWh

252 kWh

12.85 kWh

TRUE ANSWER : ?
YOUR ANSWER : ?

A 75 load uses 2 W of power. The output voltage of the power supply is approximately

12 V

120 V

1.2 V

6 V

TRUE ANSWER : ?
YOUR ANSWER : ?

When the current through a 12 k resistor is 8 mA, the power is

7.68 W

76.8 W

768 mW

7.68 mW

TRUE ANSWER : ?
YOUR ANSWER : ?

If you used 400 W of power for 30 h, you have used

1.3 kWh

1.2 kWh

12 kWh

13.3 kWh

TRUE ANSWER : ?
YOUR ANSWER : ?

A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?

201.6 kWh

8.4 kWh

20.16 kWh

2.01 kWh

TRUE ANSWER : ?
YOUR ANSWER : ?

A 6 V battery is connected to a 300 load. Under these conditions, it is rated at 40 Ah. How long can it supply current to the load?

10 h

1 h

2,000 h

200 h

TRUE ANSWER : ?
YOUR ANSWER : ?

A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least

4.8 W

15 mW

480 mW

150 mW

TRUE ANSWER : ?
YOUR ANSWER : ?

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