4 MAY 2021 CURRENT AFFAIRS QUIZ

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

1.2 V

6 V

120 V

12 V

TRUE ANSWER : ?
YOUR ANSWER : ?

Three hundred joules of energy are consumed in 15 s. The power is

20 W

2,000 W

200 W

2 W

TRUE ANSWER : ?
YOUR ANSWER : ?

For 12 V and 40 mA, the power is

All of these

480 mW

0.480 W

480,000 µW

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?

1 h

2,000 h

200 h

10 h

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?

8.4 kWh

201.6 kWh

20.16 kWh

2.01 kWh

TRUE ANSWER : ?
YOUR ANSWER : ?

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

58 Ah

21 Ah

2.1 Ah

0.58 Ah

TRUE ANSWER : ?
YOUR ANSWER : ?

A 3.3 k resistor dissipates 0.25 W. The current is

8.7 mA

8.7 µA

8.7 A

87 mA

TRUE ANSWER : ?
YOUR ANSWER : ?

In 40 kW, there are

40,000 W

0.4 mW

5,000 W

400 W

TRUE ANSWER : ?
YOUR ANSWER : ?

How many watt-hours represent 65 W used for 18 h?

11.7 Wh

117,000 Wh

1,170 Wh

11,700 Wh

TRUE ANSWER : ?
YOUR ANSWER : ?

How much continuous current can be drawn from a 60 Ah battery for 14 h?

4.28 A

4.2 A

428 A

42.8 A

TRUE ANSWER : ?
YOUR ANSWER : ?

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