In a circuit containing two unequal resistors connected in parallel
the current is same in both the resistors.
the current is large in the larger resistance.
the voltage drop is larger across the larger resistance.
the voltage is same across both the resistors.
A student carries out an experiment and plots the $V-I$ graph of three samples of nichrome wire with resistances $R_1, R_2$ and $R_3$ respectively (Figure.). Which of the following is true?
Why do the wires connecting an electric heater to the mains not glow while its heating element does ?
List in a tabular form two differences between a voltmeter and an ammeter.
Elements of electric toasters and electric iron are made of an alloy rather than a pure metal. Give two reasons to justify the statement.
Write the mathematical expression for electric potential.