Question

All questions are compulsory. In case of internal
6.0
26. The following graph shows the variation of terminal potential difference 'V',
across a combination of three cells in series to a resistor, versus the current 'i':
- Calculate the emf of each cell
For what current i', will the power dissipation of the
circuit be maximum?
0
10 2.0
27. What are eddy currents? Explain any two uses of it.
OR
Define self-induction. Derive an expression for the self-inductance of a long solenoid.
28
A 50 uF capacitor, 0.05 H inductor and a 48 12 resistor are connected in series with an ac
source of emf, E = 310 sin 314t. Calculate the reactance of the circuit and tell its nature. What
is the phase angle between the current and the applied emf?​

Answer 1

Answer:

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