AIIMS Physics: Questions 489 - 493 of 500

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Question number: 489

» Current Electricity » Electric Cell and Its Internal Resistance

MCQ▾

Question

The emf of a primary cell is Equation , when it is shorted then it gives a current of Equation . Calculate internal resistance of primary cell.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 490

» Electrostatics » Capacitors

Appeared in Year: 1999

MCQ▾

Question

Eight equally charged drops are combined to form a big drop. If the potential on each drop is Equation then potential of big drop will be – [AIPMT]

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 491

» Communication System » Basic Elements of Communication System

MCQ▾

Question

If the T. V. telecast is to cover a radius of Equation , than the height of transmitting antenna is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 492

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

MCQ▾

Question

The magnetic flux linked with a coil varies with time, given as, Equation . The induced emf at 2 sec is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 493

» Rotational Motion » Conservation of Angular Momentum

MCQ▾

Question

A rotating platform of moment of inertia Equation completes one rotation in 20 seconds. A person of mass Equation is standing at the centre of platform. If the person moves at a distance of Equation from the centre along the radius then find the angular velocity of the platform.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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