# Electromagnetic Induction & Alternating Currents (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 63 - 67 of 124

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## Question number: 63

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

MCQ▾

### Question

The current in the primary coil of a transformer (assuming no power loss) as shown in fig. will be –

### Choices

Choice (4) Response

a.

10 -6 A

b.

1.0A

c.

0.01 A

d.

0.1 A

## Question number: 64

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

### Question

A resistance of 300 Ω and an inductance of 1/π henry are connected in series to a ac voltage of 20 volt and 200 Hz frequency. The phase angle between the voltage and current is,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 65

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

### Question

Energy stored in an inductor is proportional to (i= current in the inductor)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 66

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

### Question

A resistor and a capacitor are connected in series with an ac source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, applied voltage is,

### Choices

Choice (4) Response

a.

12 V

b.

17 V

c.

13 V

d.

5 V

## Question number: 67

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

MCQ▾

### Question

If instantaneous current is given by amperes, then the r. m. s value of current is

### Choices

Choice (4) Response

a.

4 ampere

b.

c.

zero ampere

d.

f Page