A sheet of bakelite is inserted between the plates of an air capacitor. The capa

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Question
A sheet of bakelite is inserted between the plates of an air capacitor. The capacitance will
Options
A. increase
B. decrease
C. remain the same
D. may increase or decrease

Correct Answer

increase

Explanation

Bakelite has higher permittivity than air.

Materials and Components problems

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1. For a given value (n) of principle quantum number, the number of possible electronic states are
Options
A. n
B. n²
C. n³
D. n

3. Semiconductors have a positive temperature coefficient of resistivity.
Options
A. True
B. False

4. Assertion (A): Metals are better heat conductors than insulators.
Reason (R): If is temperature gradient, Q is heat flow density and K is thermal conductivity, then Q = - K (dT/dx).
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

9. Assertion (A): Magnetic susceptibility of copper is -0.5 x 10^-5.
Reason (R): Copper is diamagnetic material.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

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