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A non planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the straight sections of the loop is of length 2a. The magnetic field due to this loop at the point P(a,0,a) points in the di ...

The wire loop PQRSP formed by joining two semicircular wires of radii R1 and R2 carries a current I as shown. The magnitude of the magnetic induction at the centre C is *Image* ...

The total charge on the hollow sphere of inner radius R and outer radius 3R is Q. The electric field at a distance of 2R from centre is ...

*Image* A rod of length 3R is charged uniformly to charge q. A Gaussian surface of radius R is taken as shown in figure. The rod passes through the centre of the sphere. The electric flux on the surface is ...

A Gaussian surface in the figure is shown by dotted line. The electric field on the surface will be ...

If a charge q is placed at a centre of the hypothetical cube, the electric flux through its any face is ...

In a certain region of surface, there exists uniform electric field of 2[kcap] kV/m. A rectangular coil of dimensions 10cm×20cm is placed in y-z plane. The electric flux through the coil is ...

Identify the correct circuit to verify Ohm's law ...

In the circuit shown in figure, a voltmeter reads 30 volts when it is connected across 400Ω resistance. Find the reading of the voltmeter when it is connected across the 300Ω resistance. *Image* ...

Variation of current and voltage is shown in the graph. Find the current when the voltage is 4V *Image* ...

In the given circuit, the potential drop across the capacitor must be *Image* ...

In the previous question, the energy stored in the capacitor in steady state condition is ...

*Image* given values E1=6V, E2=2V, E3=3V R1=6Ω, R2=2Ω, R3=4Ω, R4=3Ω C=5μF The current in R3 is ...

Find the current flowing in the circuit *Image* ...

A part of circuit in a steady state along with the current flowing in the branches, the values of resistances etc. is shown in the figure. The energy stored in the capacitor is *Image* ...

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

Aldehydes can be oxidized using ...

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

In which of the following resonance with attached group is possible? ...

Diazo coupling takes place in basic conditions.It is because of: ...

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 ...