MEDIUM
JEE Advanced
IMPORTANT
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In the given circuit, each resistance is . The current (in ) in the resistance connected across and is,



Important Questions on Electric Current and Circuits
MEDIUM
JEE Advanced
IMPORTANT
In the circuit shown in the figure, find the steady-state charge in capacitor (in ).


MEDIUM
JEE Advanced
IMPORTANT
In an infinite network of resistance, each resistance of value , is arranged as shown in the figure. Find the equivalent resistance between and (in ).


HARD
JEE Advanced
IMPORTANT
Let be the capacitance of a capacitor discharging through a resistor . Suppose be the time taken for the energy stored in the capacitor to reduce to half its initial value and be the time taken for the charge to reduce to one-fourth of its initial value. Then the ratio will be,

HARD
JEE Advanced
IMPORTANT
Two conductors have the same resistance at but their temperature coefficients of resistance are and . The respective temperature coefficients of their series and parallel combinations are nearly

HARD
JEE Advanced
IMPORTANT
A resistor and capacitor in series are connected through a switch to direct supply. Across the capacitor is a neon bulb that lights up at . Calculate the value of to make the bulb light up after the switch has been closed.

MEDIUM
JEE Advanced
IMPORTANT
If a wire is stretched to make it longer, its resistance will

MEDIUM
JEE Advanced
IMPORTANT
The figure shows an experimental plot discharging of a capacitor in an circuit. The time constant of this circuit lies between:

MEDIUM
JEE Advanced
IMPORTANT
In an circuit, as shown below, both switches are open initially. Now the switch is closed and kept open. ( is the charge on the capacitor and is the capacitive time constant). Which of the following statement is correct?
