AIIMS Physics: Questions 139 - 142 of 500

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Question number: 139

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2003

MCQ▾

Question

A capacitor of capacitance 2µF is connected in the tank circuit of an oscillator oscillating with a frequency of 1 kHz. If the current flowing in the circuit is 2 mA, the voltage across the capacitor will be – [AIIMS]

Choices

Choice (4) Response

a.

159 V

b.

0.32 V

c.

0.16 V

d.

79.5 V

Question number: 140

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

Appeared in Year: 2004

MCQ▾

Question

A circular coil of radius R carries an electric current. The magnetic field due the coil at a point on the axis of the coil located at a distance r from the center of the coil, such that r>>R varies as – [AIIMS]

Choices

Choice (4) Response

a.

1r3

b.

1r2

c.

1r

d.

1r32

Question number: 141

» Electrostatics » Capacitors

Appeared in Year: 1998

MCQ▾

Question

What is the area of the plate of a 3F parallel plate capacitor, if the separation between the plates is 5 mm? [AIIMS]

Choices

Choice (4) Response

a.

4.569×109m2

b.

9.281×109m2

c.

1.694×109m2

d.

12.918×109m2

Question number: 142

» Work, Energy and Power » Kinetic Energy

Appeared in Year: 2004

MCQ▾

Question

A bomb of mass 3.0 kg explodes in air into two pieces of masses 2.0 kg and 1.0 kg. The smaller mass goes at a speed of 80ms . The total energy imparted to the two fragments is – [AIIMS]

Choices

Choice (4) Response

a.

4.8 kJ

b.

2.4 kJ

c.

1.07 kJ

d.

2.14 kJ

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