If the potential difference across the plates of a capacitor is 10V and a dielectric having thickness 2m is introduced between the plates, calculate the potential difference after introducing the dielectric. The electric field strength is 2V/m.(a) 4V(b) 6V(c) 8V(d) 10VThis question was posed to me in an international level competition.My doubt is from Composite Dielectric Capacitor in portion Capacitance and Capacitors of Basic Electrical Engineering

If the potential difference across the plates of a capacitor is 10V an

1.	If the potential difference across the plates of a capacitor is 10V and a dielectric having thickness 2m is introduced between the plates, calculate the potential difference after introducing the dielectric. The electric field strength is 2V/m.(a) 4V(b) 6V(c) 8V(d) 10VThis question was posed to me in an international level competition.My doubt is from Composite Dielectric Capacitor in portion Capacitance and Capacitors of Basic Electrical Engineering
Answer» Correct CHOICE is (B) 6V To elaborate: When a dielectric is introduced between the plates of a capacitor, its potential DIFFERENCE decreases. New potential difference= potential difference without dielectric-potential difference of dielectric = 10-2*2 = 6V.

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