Question

WILL
7. A square wave current switching rapidly between 2A and -2A is passed through an AC ammeter. Then the
reading of ammeter is
1) 2A
2) VA
3) 1A
4)
A
D​

Answer 1

Answer:

wow that sounds great man

Answer 2

Answer:

The reading of the ammeter will show the RMS value. So, the reading of the ammeter is 2A.

Explanation:

• DC is represented by RMS, or root mean square, of the alternating current and voltage. current or voltage that generates the same amount of energy as the typical alternating current or voltage.

• The RMS value is obtained by taking the square root of the mean square of the instantaneous values.

• An ammeter is a device used to measure electric current in amperes, either in direct current (DC) or alternating current (AC).
• Because only a tiny fraction of the current is sent via the meter mechanism at high values and the majority is carried by a shunt in parallel with the meter, an ammeter can measure a wide range of current values.

• The reading of the ammeter will show the RMS value. So, the reading of the ammeter is 2A.

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