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  1. A galvanometer acting as a voltmeter will have
  2. A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
  3. Charge passing through a conductor of cross-section area A=0.3 m² is given
  4. The magnifying power of the astronomical telescope for normal adjustment is 50.
  5. An engine has an efficiency of 1/6. When the temperature of sink is reduced