AIIMS (All India Institute of Medical Sciences) Physics: Questions 487 - 493 of 500

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Question number: 487

» Current Electricity » Electric Cell and Its Internal Resistance

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MCQ▾

Question

A cell of emf E is first connected to and then connected to resistance . If heat produced in both cases is same then, what is internal resistance of cell?

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Question number: 488

» Properties of Solids & Liquids » Surface Energy and Surface Tension

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Appeared in Year: 2006

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Area of liquid film is and surface tension is , what is the work done to change area up to : [RPMT]

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Question number: 489

» Current Electricity » Electric Cell and Its Internal Resistance

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

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Question number: 490

» Electrostatics » Capacitors

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Appeared in Year: 1999

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

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Question number: 491

» Communication System » Basic Elements of Communication System

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

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Question number: 492

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

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

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Question number: 493

» Rotational Motion » Conservation of Angular Momentum

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

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