A series combination of an inductance (L) and a resistance (R) is connected to a battery of emf E. The final value of current depends on
L and R
E and R
E and L
E, L and R
Initially, the induced emf (or back emf) in the growing of current through the circuit.
The inductance behaves as an open-circuit. Once the current builds up to its final value
I0, there occurs no more change in the current. The back emf induced in the inductance
reduces to zero. It behaves like a short-circuit. Hence the final value of the current is
which depends only on E and R. Hence, answer (b) is correct.
Study 40% syllabus and score up to 100% marks in JEE
5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
A capacitor is made of two square plates each of side 'a' making a very small angle
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d