Recently Active Miscellaneous Questions

The current in 2 Ω resistor is *Image* ...

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will acceleration due to gravity change from cities to cities? ...

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A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if ...

Twelve moles of diatomic ideal gas is contained in thermally insulated container and it is heated through resistance R Ω by passing a current of 1A for five minutes. The gas expands at constant pressure with the increase in ...

A wire of length L and 4 identical cells of negligible internal resistance are connected in series. Due to the current, the temperature of the wire is raised by ΔT in a time t. A number N of similar cells is now connected in ...

A battery of internal resistance 4Ω is connected to the network of resistances as shown. In order that the maximum power can be delivered to the network, the value of R should be *Image* ...

A 100 W bulb B1, and two 60 W bulbs B2 and B3 are connected to a 250 V source, as shown in the figure. W1, W2 and W3 are the output powers of the bulbs B1, B2 and B3 respectively. Then *Image* ...

*Image* find R such that net resistance across AB is R ...

*Image* all the wires are of equal resistance R, the equivalent resistance between points A and B is ...

In the circuit shown in the figure, the current through *Image* ...

In the circuit alongside, each battery is 5V and has an internal resistance of 0.2 ohm. The reading in the ideal voltmeter is *Image* ...

A positive point charge is placed inside a spherical metallic shell. The electric field lines are represented by ...

The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielect ...

A parallel plate capacitor is connected to a battery. The quantities charge, voltage, electric field and energy associated with this capacitor are given as Q0, V0, E0 and U0 respectively. A dielectric slab is now introduced t ...

A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is similarly charged to a potential difference 2V. The charging battery is ...

Two identical capacitors, have the same capacitance C. One of them is charged to potential V1 and the other to V2. The negative ends of the capacitors are connected together. When the positive ends are also connected, the dec ...

A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved further apart by means of insulating handles ...

*Image* find the equivalent capacitance between A and B ...

*Image* The equivalent capacitance between A and B is 1μF The value of C is ...

Seven capacitors each of capacitance 2μF are to be connected in a configuration to obtain an effective capacitance of (10/11)μF. Which of the combination shown in the figure will achieve the desired result? ...

*Image* find the equivalent capacitance between A and B all capacitors are of capacitance C ...

Given the capacitance of each capacitor C, find the equivalent capacitance between A and B *Image* ...

The capacitance of a parallel plate capacitor with plate area A and separation d is C. The space between the plates is filled with two wedges of dielectric constants K1 and K2 respectively. The capacitance of the resulting ca ...

A parallel plate capacitor of plate area A and separation d is charged to potential difference V and then the battery is disconnected. A slab of dielectric constant K is then inserted between the plates of capacitor so as to ...

A dielectric slab of thickness d is inserted in a parallel plate capacitor whose negative plate is at x=0 and positive plate at x=3d. The slab is equidistant from the plates. The capacitor is given some charge. As x g ...

A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three different dielectric materials having dielectric constants k1, k2 and k3 as shown. If the single dielectric material is to be use ...

Two parallel plate capacitors of capacitances C and 2C are connected in parallel and charged to a potential difference to V. The battery is then disconnected and the region between the plates of the capacitor C is completely ...