A parallel plate capacitor made of circular plates each of radius $$R=6cm$$ has a capacitance $$C=100pF$$. The capacitor is connected to a $$230V$$ ac supply with a angular frequency of $$300$$ $$rad/$$$$sec$$. Find the amplitude of B at a point $$3cm$$ from the axis between the plates.

Question

A parallel plate capacitor made of circular plates each of radius $$R=6cm$$ has a capacitance $$C=100pF$$. The capacitor is connected to a $$230V$$ ac supply with a angular frequency of $$300$$ $$rad/$$$$sec$$.  Find  the amplitude of B at a point $$3cm$$ from the axis between the plates.

Infinity Learn · Accepted Answer

$$Xc=1$$ω$$C=1300$$×$$100$$×$$10$$−$$12=1083$$Ω $$irms=VrmsXc=2301083=6.9$$×$$10$$−$$6A$$ For r >R, $$Brms=$$μ$$02$$$$π$$$$irmsR2r=2$$×$$10-7$$×$$6.9$$×$$10-6$$×$$(0.03)(0.06)2=1.15$$×$$10$$−$$11T$$ $$B0=2Brms=2$$×$$1.15$$×$$10$$−$$11=1.63$$×$$10$$−$$11T$$

A parallel plate capacitor made of circular plates each of radius $R = 6 c m$ has a capacitance $C = 100 p F .$ The capacitor is connected to a 230V ac supply with a angular frequency of 300 rad/sec. Find the amplitude of B at a point 3cm from the axis between the plates.

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A parallel plate capacitor made of circular plates each of radius R=6cm has a capacitance C=100pF. The capacitor is connected to a 230V ac supply with a angular frequency of 300 rad/sec. Find the amplitude of B at a point 3cm from the axis between the plates.

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A parallel plate capacitor made of circular plates each of radius $R = 6 c m$ has a capacitance $C = 100 p F .$ The capacitor is connected to a 230V ac supply with a angular frequency of 300 rad/sec. Find the amplitude of B at a point 3cm from the axis between the plates.