MCQ
Like coulomb force, ______ also satisfies superposition principle.
  • A
    Electric charge.
  • B
    Electric field.
  • C
    Both a and b.
  • D
    None.

Answer

  1. Electric field.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is

(a)  

(b)  

(c)

(d)

prism can produce a minimum deviation $\delta$ in a light beam. If three such prisms are combined, the minimum deviation that can be produced in this beam is:

  1. $0$

  2. $\delta$

  3. $2\delta$

  4. $3\delta$

The distinction between conductors, insulators and semiconductors is largely concerned with:
The free end of a simple pendulum is attached to the ceiling of a box. The box is taken to a height and the pendulum is oscillated. When the bob is at its lowest point, the box is released to fall freely. As seen from the box during this period, the bob will:
  1. Continue its oscillation as before.
  2. Stop.
  3. Will go in a circular path.
  4. Move on a straight line.

A long straight wire carries a current of π amp. The magnetic field due to it will be 5  at what distance from the wire [ permeability of air]

(a)   metre

(b)  metre

(c)  metre

(d)  metre

Magnetic flux $\phi$ (in weber) linked with a closed circuit of resistance $10\Omega$ varies with time t (in second) as $\phi=512-4\text{t}+1$.The induced electromotive force in the circuit at t = 0.2 second is.

A hydrogen atom in its ground state absorbs 10.2 eV of energy. The orbital angular momentum is increased by

(a) 1.05   J-sec

(b) 3.16   J-sec

(c) 2.11   J-sec

(d) 4.22   J-sec

A prism having an apex angle 4o and refraction index 1.5 is located in front of a vertical plane mirror as shown in figure. Through what total angle is the ray deviated after reflection from the mirror

(a) 176o

(b) 4o

(c) 178o

(d) 2o  

For a common base amplifier, the values of resistance gain and voltage gain are 3000 and 2800 respectively. The current gain will be:

To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R, when

(a) R >> r

(b) R << r

(c) R = r

(d) None of these