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ICSE Prelims 2018 : Physics (Goldcrest High, Latur)

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Abhishek Dhar
Goldcrest High, Latur
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GOLDCREST HIGH, LATUR On the wings of excellence CYCLE TEST-1II FOR CLASS X (2017-18) PHYSICS (CURRENT ELECTRICITY, HOUSEHOLD CIRCUITS & ELECTROMAGNETISM) TIME: 1 HOUR F.M: 40 SECTION-A (20 marks) Question 1. i. Define 1 Ampere. ii. State the working principle of a fuse. iii. A fuse is connected in _______________ across an electrical circuit. Question 2. i. Why should switches always be connected with the live wire? ii. The resistance of an electrical appliance varies when it is in use from the state of not being used. State an appropriate reason for the observation made above. iii. 1 KWh = ____________________ J. [2] [2] [1] [2] [2] [1] Question 3. i. Define 1 Watt. ii. Differentiate between the EMF and Terminal voltage of a cell. (Any 2 points). iii. State the limitation of Ohm s law. [2] [2]. [1] Question 4. i. A switch is always connected in _________________ (Series/ Parallel) with the device to be operated. ii. Explain the reason why the lights of a vehicle go dim when the engine is started. iii. Define Electromotive force. [1] [2] [2] P.T.O

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