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ICSE Class X Mid-term 2021 : Physics : Summative (Ryan International School)

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Melvin
Ryan International School (RIS), Kundalahalli, Bangalore

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RICSE II ASSESSMENT(Summative)- 2020-21 SUBJECT: PHYSICS CLASS: X ICSE Maximum Marks: 40 Section A [40 M] IAnswer all 5x 1-5 1. State whether the resistivity of a wire changes with the change in the thickness of the wire and why? (Electricity) 2 State two ways of increasing the frequency of vibrations of a stretched string. (Sound) 3.Why the hightension wire should have low resistance and large surface area? (House hold circuits) 4. Write two factors which do not affect the e.m.f of a cell. (Electricity) 5. State the law of resistance in parallel. (Electricity) II Answer all 5x2 10 6. Write two conditions of an echo. (Sound) 7. You have three resistors of values 22, 32 and 52. How will you join them so that the total resistance is less than 127 i) Draw a diagram for the arrangement. (ii) Calculate the total resistance. 8.Identify the following wires used in a household circuit: 1) The wire is also called as the phase wire. (Electricity)

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