20 Animated Videos | 20 Structured Questions.
Find the total power dissipation in each case.
Find the ratio of rate of the heat dissipation in two wires.
Find the efficiency of given water heater.
Calculate the resistance of the heater.
Determine the no. of cells required to raise the temp. by same amount.
What will be efficiency of cell if the external resistance is increased by ten times?
Find the power dissipated in the marked resistor.
Find the rate of heat produced in the 4 W resistor.
What resistance must be connected in series with the bulb so that it delivers 500 W?
Find the max. no. of bulbs that can be illuminated so that voltage across none of the lamps drops below 240 V.
Find the max. no. of bulbs that can be safely connected in parallel to given circuit.
Find the max. power the circuit can dissipate and max. safe value of E.
Find 'R' to deliver maximum power to the network.
Find the value of 'R' for which the power delivered to resistor will be maximum.
Find the time when current in the resistor is zero.
Calculate the leakage current at the instant t = 17.7 s.
Plot the variation of voltage across the resistor.
What is the ratio of time constant during charging and discharging of the capacitor ?
Find the energy stored in the capacitor.
Find the potential difference between the points A and B in the steady state.
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