AIIMS (All India Institute of Medical Sciences) Physics: Questions 144 - 148 of 500

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Question number: 144

» Current Electricity » Series and Parallel Combinations of Resistors

Appeared in Year: 2005

MCQ▾

Question

For ensuring dissipation of same energy in all three resistors (R1, R2, R3) connected as shown in figure, their values must be related as - [AIIMS]

Combination of three resistors

Combination of Three Resistors

In figure combination of three resistors is shown.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 145

» Electrostatics » Capacitors

Appeared in Year: 2000

MCQ▾

Question

Three capacitors of capacitance 3µF, 10µF and15µF are connected in series to a voltage source of 100V. The charge on 15µF is – [AIIMS]

Choices

Choice (4) Response

a.

200 µC

b.

160 µC

c.

280 µC

d.

50 µC

Question number: 146

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2005

MCQ▾

Question

A 50 Hz a. c. source of 20 volts is connected across R and C as shown in figure below. The voltage across R is 12 volts. The voltage across C is – [AIIMS]

RC series circuit diagram

RC Series Circuit Diagram

In figure resistance R and capacitor C is connected in series, with 50 Hz a. c. source of 20 volts supply.

Choices

Choice (4) Response

a.

Not possible to determine unless values of R and C are given

b.

8 V

c.

16V

d.

10 V

Question number: 147

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

The vector and are perpendicular to each other. The positive value of a is:

Choices

Choice (4) Response

a.

zero

b.

2

c.

1

d.

3

Question number: 148

» Magnetic Effects of Current and Magnetism » Electromagnets and Permanent Magnets

Appeared in Year: 1999

MCQ▾

Question

When a magnetic substance is heated, then it – [AIIMS]

Choices

Choice (4) Response

a.

Becomes a strong magnet

b.

Does not affect the magnetism

c.

Losses its magnetism

d.

None of the above

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