UP Board Physics Book Class 12. We covered all the UP Board Physics Book Class 12 MCQs in this post for free so that you can practice well for the exam.
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UP Board Physics Book Class 12 Objective for Students
Two capacitors are connected in parallel, and a potential is applied at their ends. The energy stored in the system will be
a. -0.20 J
b. 0.10 J
c. 0.30 J
d. 0.05 J
Option b – 0.10 J
The dielectric constant of a substance is 80. Its susceptibility is
a. 81
b. 79
c. 82
d. 78
Option b – 79
Electric susceptibility for vacuum is
a. 0
b. 1
c. -1
d. None of the above
Option a – 0
The potential difference between two plates of a parallel plate condenser is 100 volts. If the separation between plates is doubled, what will be the new potential difference?
a. 100 volts
b. 200 volts
c. 20 volts
d. 2 volts
Option b – 200 volts
The potential energy when a dielectric is placed between the plates of a condenser
a. decreases
b. increases
c. no change
d. increases and decreases
Option a – decreases
Which of the following properties gives the same value in all systems of units
a. polarization
b. Electric displacement
d. Dielectric constant
Option d – Dielectric constant
The potential difference between the plates when a dielectric is placed between the plates
a. decreases
b. increases
c. doesn’t change
d. increases and decreases
Option a – decreases
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