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MCQ (Single Correct Answer)

WB JEE 2008
A battery of e.m.f. E and internal resistance r is connected to an external resistance R the condition for maximum power transfer is
WB JEE 2008
A thin wire of resistance 4 $$\Omega$$ is bent to form a circle. The resistance across any diameter is
WB JEE 2023
12 $$\mu$$C and 6 $$\mu$$C charges are given to the two conducting plates having same cross-sectional area and placed face to face close to each othe...
WB JEE 2023
In an experiment on a circuit as shown in the figure, the voltmeter shows 8 V reading. The resistance of the voltmeter is,...
WB JEE 2023
An amount of charge Q passes through a coil of resistance R. If the current in the coil decreases to zero at a uniform rate during time T, then the am...
WB JEE 2022
A battery of emf E and internal resistance r is connected with an external resistance R as shown in the figure. The battery will act as a constant vo...
WB JEE 2022
Find the equivalent capacitance between A and B of the following arrangement : ...
WB JEE 2022
Three concentric metallic shells A, B and C of radii a, b and c (a < b < c) have surface charge densities +$$\sigma$$, $$-$$$$\sigma$$ and +$$\s...
WB JEE 2021
The carbon resistor with colour code is shown in the figure. There is no fourth band in the resistor. The value of the resistance is...
WB JEE 2021
Two metal wires of identical dimensions are connected in series. If $$\sigma$$1 and $$\sigma$$2 are the electrical conductivities of the metal wires r...
WB JEE 2020
A galvanometer can be converted to a voltmeter of full scale deflection V0 by connecting a series resistance R1 and can be converted to an ammeter of ...
WB JEE 2020
What will be the equivalent resistance between the terminals A and B of the infinite resistive network shown in the figure?...
WB JEE 2020
Consider the circuit shown.If all the cells have negligible internal resistance, what will be the current through the 2$$\Omega $$ resistor when stea...
WB JEE 2020
A pair of parallel metal plates are kept with a separation d. One plate is at a potential + V and the other is at ground potential. A narrow beam of e...
WB JEE 2019
Five identical capacitors, of capacitance 20$$\mu$$F each, are connected to a battery of 150V, in a combination as shown in the diagram. What is the t...
WB JEE 2019
What is the current I shown in the given circuit?...
WB JEE 2019
When the value of R in the balanced Wheatstone bridge, shown in the figure, is increased from 5$$\Omega $$ to 7$$\Omega $$, the value of S has to be i...
WB JEE 2019
A capacitor of capacitance C is connected in series with a resistance R and DC source of emf E through a key. The capacitor starts charging when the k...
WB JEE 2018
Four resistors, 100$$\Omega $$, 200$$\Omega $$, 300$$\Omega $$ and 400$$\Omega $$ are connected to form four sides of a square. The resistors can be c...
WB JEE 2018
What will be current through the 200$$\Omega $$ resistor in the given circuit, a long time after the switch K is made on?...
WB JEE 2018
An electric bulb, a capacitor, a battery and a switch are all in series in a circuit. How does the intensity of light vary when the switch is turn on?
WB JEE 2018
The insulated plates of a charged parallel plate capacitor (with small separation between the plates) are approaching each other due to electrostatic ...
WB JEE 2017
Three capacitors of capacitance 1.0, 2.0 and 5.0 $$\mu$$F are connected in series to a 10 V source. The potential difference across the 2.0$$\mu$$F ca...
WB JEE 2017
Six wires, each of resistance r, are connected so as to form a tetrahedron. The equivalent resistance of the combination when current enters through o...
WB JEE 2017
Consider the circuit shown in the figure.The value of the resistance X for which the thermal power generated in it is practically independent of small...
WB JEE 2017
Consider the circuit shown in the figure where all the resistances are of magnitude 1 k$$\Omega$$. If the current in the extreme right resistance X is...
WB JEE 2017
Consider the circuit given here. The potential difference VBC between the points B and C is...

Subjective

WB JEE 2008
Two wires each of same material and same length have 2 L 1 ratio of their radii. If the first wire has a resistance of 2 $$\Omega$$ then what will be ...
WB JEE 2008
A 60 W - 220 V bulb is connected in series with another bulb 40 W - 220 V. Which bulb will give more illuminance ?

MCQ (More than One Correct Answer)

WB JEE 2023
The figure shows two identical parallel plate capacitors A and B of capacitances C connected to a battery. The key K is initially closed. The switch ...
WB JEE 2022
A hemisphere of radius R is placed in a uniform electric field E so that its axis is parallel to the field. Which of the following statement(s) is/ar...
WB JEE 2019
In the circuit shown in the figure all the resistance are identical and each has the value r$$\Omega $$. The equivalent resistance of the combination ...
WB JEE 2018
A non-zero current passes through the galvanometer G shown in the circuit when the key K is closed and its value does not change when the key is opene...
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