Q1.Two metallic wires P and Q are connected in parallel. P has length L and radius R, and Q has length 2L and radius 2R. Find the ratio of the total resistance of the combination and the resistance of wire P?
Q2.One billion electrones pass from a point A towards another point B in 10^-4 second. what is the current in amperes? What is its direction?
Q3.How much work is done in moving a charge of 2 C from a point at 118 V to a point at 128 V?Q4. Find the current drawn from the battery by the network of four resistors Shown in the figure.
Q5. The wattage of a bulb is 24 W when it is connected to a 12 V battery. Calculate its effective wattage if it operates on a 6 V battery (Neglect the change in resistance due to unequal heating of the filament in the two cases).
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