Electromagnetic Induction & Alternating Currents (BITSAT Physics): Questions 1 - 5 of 17

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Question number: 1

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

Question

In a coil of self – inductance Equation , the rate of change of current is 2 ampere per second. The emf induced in the coil is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

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

MCQ▾

Question

An electric lamp is connected to Equation , Equation supply. The peak voltage is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

Question

The phenomenon of production of emf in a current carrying metallic strip on applying a magnetic field along a direction perpendicular to the direction of flow of current is known as –

Choices

Choice (4) Response

a.

Hall effect

b.

Joule effect

c.

Seeback effect

d.

Peltier effect

Question number: 4

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

MCQ▾

Question

In a transformer, the number of turns of primary coil and secondary coil are Equation and Equation , respectively. If Equation is applied on the primary coil, then the ration of current in primary and secondary coil is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 5

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

Question

In an A. C. circuit the potential different across an inductance and resistance joined in series are respectively Equation and Equation . The total potential different across the circuit is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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