WHATSAPP Welcome to Edugrown – Your Learning Partner
🛒
Previous Year Questions

PYQ Bank & Paper Generator

Board, class, subject, chapter, year-wise PYQ. Practice effectively and ace your board exams.

1,573 Questions
CBSE
#1 Class Class 12 Physics Electric Potential & Capacitance 2020 Mcq 1M
A point charge +q is placed at origin O. Work done in taking another point charge −Q from point A (0, a) to point B (a, 0) along straight path AB is
A. Zero
B. kqQ/a²
C. −kqQ/a
D. kqQ/a
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#2 Class Class 12 Physics Electric Potential & Capacitance 2021 Short 3M
Calculate the voltage needed to balance an oil drop carrying 10 electrons, between capacitor plates 5 mm apart. Mass = 3×10⁻¹⁶ kg, e = 1.6×10⁻¹⁹ C, g = 9.8 m/s².
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#3 Class Class 12 Physics Electric Potential & Capacitance 2023 Short 3M
An electric field E = 50î + 75ĵ N/C exists in a region. Presuming potential at origin to be zero, find the potential at point P(1 m, 2 m).
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#4 Class Class 12 Physics Electric Potential & Capacitance 2022 Short 3M
A short electric dipole has dipole moment 16×10⁻⁹ C·m. Find the electric potential at a point 0.6 m from centre, on a line making 60° with the dipole axis.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#5 Class Class 12 Physics Electric Potential & Capacitance 2023 Short 5M
Derive the expression for the electric potential due to an electric dipole at an axial point.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#6 Class Class 12 Physics Electric Potential & Capacitance 2022 Short 3M
Calculate the potential at the centre of a square ABCD of each side √2 m due to charges 2, −2, −3 and 6 µC at the four corners.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#7 Class Class 12 Physics Electric Potential & Capacitance 2021 Short 3M
(A) Calculate the potential at point P due to charge 4×10⁻⁷ C located 9 cm away. (B) Obtain the work done in bringing charge 2×10⁻⁹ C from infinity to point P. Does the answer depend on the path?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#8 Class Class 12 Physics Electric Potential & Capacitance 2020 Short 3M
What do you mean by polar molecules? What happens to them when electric field is applied?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#9 Class Class 12 Physics Electric Potential & Capacitance 2021 Short 3M
Two charged spherical conductors of radii R₁ and R₂ are connected by a conducting wire. Find the ratio of their surface charge densities in terms of their radii.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#10 Class Class 12 Physics Electric Potential & Capacitance 2022 Long 5M
How does electric potential vary from point to point due to a thin charged spherical shell? Draw a graph showing variation of potential with distance.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#11 Class Class 12 Physics Electric Potential & Capacitance 2023 Long 5M
Write the working principle of a parallel plate capacitor. On what factors does the capacitance of a parallel plate capacitor depend?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#12 Class Class 12 Physics Electric Potential & Capacitance 2019 Short 3M
Show that the capacitance of a spherical capacitor is more than that of a spherical conductor.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#13 Class Class 12 Physics Electric Potential & Capacitance 2020 Short 3M
Show that the capacitance of an insulated spherical conductor is directly proportional to the radius of the spherical conductor.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#14 Class Class 12 Physics Electric Potential & Capacitance 2021 Short 3M
Why does the electric field inside a dielectric decrease when it is placed in an external electric field?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#15 Class Class 12 Physics Electric Potential & Capacitance 2022 Short 5M
A capacitor of capacity C₁ is charged to potential V₀. On disconnecting the battery, it is connected with uncharged capacitor C₂. Find the ratio of energies before and after connection of switch S.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#16 Class Class 12 Physics Electric Potential & Capacitance 2024 Short 5M
Obtain the equivalent capacitance of the network shown in figure. For a 300 V supply, determine the charge on each capacitor.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#17 Class Class 12 Physics Electric Potential & Capacitance 2023 Short 5M
Derive an expression for the capacitance of a parallel plate capacitor with air present between the two plates.
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#18 Class Class 12 Physics Electric Potential & Capacitance 2020 Short 3M
Charges (+q) and (−q) are placed at points A and B, which are 2L apart. C is the midpoint between A and B. What is the work done in moving a charge +Q along the semicircle CRD?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#19 Class Class 12 Physics Electric Potential & Capacitance 2022 Mcq 1M
A uniform electric field pointing in positive X-direction exists in a region. A is origin, B is on X-axis at x = +1 cm, C is on Y-axis at y = +1 cm. Then the potential at A, B and C satisfy:
A. VA < VB
B. VA > VB
C. VA < VC
D. VA > VC
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★
CBSE
#20 Class Class 12 Physics Electric Potential & Capacitance 2021 Short 2M
Electrostatic potential is constant throughout the volume of a conductor and has the same value on its surface. Why?
👁 View Answer
👍 0 👎 0
✅ Verified by Super Admin
Rate: ★ ★ ★ ★ ★

🔔 Email Updates Lein

Naya content aate hi email par pata chal jayega. Sirf wahi sections chunein jo chahiye.

🔒 Content copy nahi kar sakte