# Electromagnetic Induction & Alternating Currents (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 93 - 96 of 124

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## Question number: 93

» Electromagnetic Induction & Alternating Currents » Power in AC Circuits

Assertion-Reason▾

### Assertion (Ꭺ)

For an electric lamp connected in series with a variable capacitor and ac source, its brightness increases with increase in capacitance.

### Reason (Ꭱ)

Capacitive reactance decreases with increase in capacitance of capacitor.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Ꭺ is false but Ꭱ is true

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

## Question number: 94

» Electromagnetic Induction & Alternating Currents » Alternating Currents

Assertion-Reason▾

### Assertion (Ꭺ)

An alternating current is more dangerous than the direct steady current.

### Reason (Ꭱ)

The frequency of the alternating current is injurious the human body.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

## Question number: 95

» Electromagnetic Induction & Alternating Currents » Power in AC Circuits

MCQ▾

### Question

In an ac circuit, V and I are given by ,

. The average power dissipated in circuit is

### Choices

Choice (4) Response

a.

2.5 watt

b.

10 4 watt

c.

10 watt

d.

0.025 watt

## Question number: 96

» Electromagnetic Induction & Alternating Currents » Resonance

MCQ▾

### Question

This circuit will resonate at ω equal to,

### Choices

Choice (4) Response

a.

b.