JEE Main Test 30

Result

JEE Main Test 30

Score
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out of -
Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Alternating current cannot be measured by direct current meters, because -

A
alternating current cannot pass through an ammeter

B
the average value of current for complete cycle is zero

C
some amount of alternating current is destroyed in the ammeter.

D
None of these

Solution

Average value of current for complete cycle is zero. Hence cannot be measured by dc current meters.
Question 2
4 / -1

Alternating current lead the applied e.m.f. by π/2 when the circuit consists of -

A
only resistance

B
only capacitor

C
only an inductance coil

D
capacitor and resistance both

Solution

Alternating current lead applied emf by π/2 when only capacitor is present in the circuit.