A capacitro is made of two circular plates each of radius `0*25`m [Fig 1.09] .It is being charged by an external source.What is the magnetic field at a piont P at adistnce of 0.5 m from the entre of the plates in the plane midway between them,when the charging current is 1 A?
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Fig.110 shows a capacitor made of two circular plates each of radius R=12 cm and separated by 5 cm.The capacitor is being charged by an external source (not shown in the figure).Use modified Ampere's circuital law to determine magnetic field at the point P at a distance of 0.5 m from the centre of the plats in the plane midway between them,when the chargingg current is 2A? .

Fig. TBQ 8.1 shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15 A. Calculate the capacitance and rate of change of potential difference between the plates.

Figure 8.6 shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A. Calculate the capacitance and the rate of change of potential difference between the plates. :

Figure shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A. Obtain the displacement current across the plates. :

Two charges eacdh of 0.1muC but opposite in sign are 1 mm apart. What is the electric field at a point on the line joining them at a distance of 10 cm from the mid-point?

Figure 8.6 shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A. Is Kirchhoffs first rule (junction rule) valid at each plate of the capacitor? Explain. :

A small coil of radius 0.002 m is placed on the axis of a magnet of magnetic moment 10^(5) JT^(-1) and length 0.1 m at a distance of 0.15 m from the centre of the magnet. The plane of the coil is perpendicular to the axis of the magnet. Find the force on the when a current of 2.0 A is passed through it.

Calculate the magnetic field due to a circular coil of 250 turns and of diameter 0.1m, carrying a current of 7A at a point on the axis of the coil at a distance 0.12m from the center of the coil.

A parallel plate capacitor (Fig. 8.7) made of circular plates each of radius R = 6.0 cm has a capacitance C = 100 pF. The capacitor is connected to a 230 V ac supply with a (angular) frequency of 300 rad s^-1 . Determine the amplitude of B at a point 3.0 cm from the axis between the plates. :

A dipole of lenth 0.1 m consits of two charges of +- 500 muC . What is its electric dipole moment? Calculate the electric field due to the dipole at a point on the axis distnat 0.2 m from one of the charges in air.