In a variable capacitor, capacitance can be varied by ______(a) Turning the rotatable plates in or out(b) Sliding the rotatable plates(c) Changing the plates(d) Changing the material of platesThe question was asked during an online exam.I'm obligated to ask this question of Types of Capacitor and Capacitance in section Capacitance and Capacitors of Basic Electrical Engineering

In a variable capacitor, capacitance can be varied by ______(a) Turnin

1.	In a variable capacitor, capacitance can be varied by ______(a) Turning the rotatable plates in or out(b) Sliding the rotatable plates(c) Changing the plates(d) Changing the material of platesThe question was asked during an online exam.I'm obligated to ask this question of Types of Capacitor and Capacitance in section Capacitance and Capacitors of Basic Electrical Engineering
Answer» Correct OPTION is (a) Turning the rotatable plates in or out Best explanation: As the plates are rotated, the AREA of the plates between which the field exists, will vary. CAPACITANCE DEPENDS on area, hence as area varies, capacitance also varies.

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