Of the two bulbs in a house, one glows brighter than the other. Which of the two has a larger resistance ?
$(a)$ How is the direction of electric current related to the direction of flow of electrons in a wire ?
$(b)$ Calculate the current in a circuit, if $500 \,C$ of charge passes through it in $10$ minutes.
Why is very less heat generated in long electric cables than in filaments of electric bulbs ?
In the circuit shown below, calculate
$(a)$ total resistance in arm $CE,$
$(b)$ total current drawn from the battery, and
$(c)$ current in each arm, i.e., $A B$ and $C E$ of the circuit.
If five equal pieces of wire having $5\, \Omega$ resistance are made and connected in parallel, then their equivalent resistance will be $......$