Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each. After the two spheres are joined by a conducting wire, the charge on the smaller sphere is […]
A parallel plate capacitor is charged and then isolated. The effect of increasing the plate seperation on charge, potential and capacitance respectively are,
Options
(a) constant, decreases, increases (b) constant,decreases,decreases (c) constant, increases, […]
Pick out the statement which is incorrect?
Options
(a) A negative test charge experience a force opposite to the direction of the field (b) the tangent drawn to a line of force represents […]
The angle between the dipole moment and electric field at any point on the equatorial plane is
Options
(a) 180° (b) 0° (c) 45° (d) 90°
Correct Answer:
180°
Explanation:
No explanation available. […]
The acceleration of an electron in an electric field of magnitude 50 V/cm, if e/m value of the electron is 1.76×10¹¹ C/kg will be
Options
(a) 8.8×10¹⁴ m/sec² (b) 3×10¹³ m/sec² (c) 5.4×10¹² m/sec² […]
Electric field intensity at a point in between two parallel sheets due to like charges of same surface charge densities (σ) is
Options
(a) σ/2ε₀ (b) σ/ε₀ (c) Zero (d) 2σ/ε₀
Correct Answer: […]
When 10¹⁹elecrons are removed from a neutral metal plate through some process, then the charge on it becomes
Options
(a) (+1.6C) (b) (-1.6C) (c) 10¹⁹C (d) 10⁻¹⁹C
Correct Answer:
(+1.6C)
Explanation:
No explanation […]
The S.I. unit of electric flux is
Options
(a) Weber (b) Newton per coulomb (c) Volt x metre (d) Joule per coulomb
Correct Answer:
Volt x metre
Explanation:
No explanation available. Be the […]
A point charge q is situated at a distance r on axis from one end of a thin conductiong rod of length L having a charge Q [uniformly distributed along its length]. The magnitude of […]
Two small spherical shells A and B are given positive charges of 9C and 4C respectively and placed such that their centres are seperated by 10m. If P is a point in between them, where […]
2017-2025 Copyright Doctor Dreams Training Academy - About Us - Privacy Policy - Terms & Conditions - Contact Us - Refund Policy