Electromagnetic Induction & Alternating Currents-Alternating Currents (AIIMS Physics): Questions 1 - 4 of 4

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Question number: 1

» Electromagnetic Induction & Alternating Currents » Alternating Currents

Appeared in Year: 1997

MCQ▾

Question

In an A. C. circuit containing only capacitance, the current – [AIIMS]

Choices

Choice (4) Response

a.

Lags the voltage by 90°

b.

Leads the voltage by 180°

c.

Leads the voltage by 90°

d.

Remains in phase with the voltage

Question number: 2

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

In an A. C. circuit containing only inductor, the voltage –

Choices

Choice (4) Response

a.

Leads the current by 180°

b.

Leads the current by 90°

c.

Lags the current by 90°

d.

Remains in phase with the voltage

Question number: 3

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

Alternating voltage V=300sin(200πt) is applied across the resistance 0.3kΩ . The rms value of current is equal to –

Choices

Choice (4) Response

a.

0.5A

b.

0.7A

c.

1.0A

d.

0.3A

Question number: 4

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

An alternative current is given as, I=3sin(30t) . The average value of current over a half – cycle –

Choices

Choice (4) Response

a.

π6

b.

3π

c.

π3

d.

6π

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