List of top Physics Questions on Resistance asked in BITSAT

The effect of an increase in temperature on the number of electrons in the conduction band (\( n_e \)) and the resistance of a semiconductor will be as follows:
The resistance of a wire is \( 5 \Omega \). What will be its new resistance in ohms if stretched to 5 times its original length?
Twelve resistors each of resistance $16\,\Omega$ are connected in the circuit as shown. The net resistance between $A$ and $B$ is
A wire $X$ is half the diameter and half the length of a wire $Y$ of similar material. The ratio of resistance of $X$ to that of $Y$ is
What should be the characteristic of fuse wire?
A letter ' $A$ ' is constructed of a uniform wire with resistance $1.0\, \Omega$ per $cm$, The sides of the letter are $20\, cm$ and the cross piece in the middle is $10 \,cm$ long. The apex angle is $60$ . The resistance between the ends of the legs is close to:
In the adjacent shown circuit, a voltmeter of internal resistance $R$, when connected across $B$ an $C$ reads $\frac{100}{3} V$. Neglecting the internal resistance of the battery, the value of $R$ is
A cell of constant emf first connected to a resistance $R_1$ and then connected to a resistance $R_2$. If power delivered in both cases is same then the internal resistance of the cell is :