20) A constant current of 2 mA charges a 20 microFarade capacitor for 2 s. Which of the following is true for the charging of the capacitor.

Answer is:

Capacitor voltages increases linearly from 0V to 200V

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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21) which of the following is true for a hot wire ammeter?

Answer is:

All of the above

22) Current transformer is employed for

Answer is:

For measurement of high alternating current

23) Sweep of ceiling fan refers to

Answer is:

Diameter of circle formed by its rotation

Explanation:

Ceiling fans are measured by the full size of their blade span (also called blade sweep), which is the diameter of the circle that you see when the fan blades are in motion. Or, in other words, fan blade span reaches from the tip of one fan blade to the tip of the blade directly across, also Sweep of ceiling fan refers to double the distance from centre of motor to tip of the blade.