Three conductors draw currents of 1A,2A and 3A respectively, when connected in a turn across a battery. If they are connected in series and the combination is connected across the same battery, the current drawn will be
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Q2
The value of ∣∣
∣
∣∣(a+1)(a+2)a+21(a+2)(a+3)a+31(a+3)(a+4)a+41∣∣
∣
∣∣ is :
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Q3
Prove that :
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Q4
What is the reading of Ammeter if emf of the battery is 12V and internal resistance is 2W when
i) K1 is closed
ii) K2 is closed
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Q5
The turn ratio of a transformers is given as 2 : 3. If the current through the primary coil is 3 A, thus calculate the current through load resistance