Question

What is the equivalent resistance between A and B

(a)  

(b)  

(c)  

(d) 2R

Answer

(c)  

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

Potentiometer measures the potential difference more accurately than a voltmeter because:
Which of the following are insulators.

In a vibration magnetometer, the time period of a bar magnet oscillating in horizontal component of earth's magnetic field is 2 sec. When a magnet is brought near and parallel to it, the time period reduces to 1 sec. The ratio H/F of the horizontal component H and the field F due to magnet will be

(a) 3

(b) 1/3

(c)  

(d) 1/ 

Below figures (1) and (2) represent lines of force. Which is correct statement

(a) Figure (1) represents magnetic lines of force

(b) Figure (2) represents magnetic lines of force

(c) Figure (1) represents electric lines of force

(d) Both figure (1) and figure (2) represent magnetic lines of force

The work done in bringing a 20 coulomb charge from point A to point B for distance 0.2m is 2J. The potential difference between the two points will be (in volt)

(a) 0.2

(b) 8

(c) 0.1

(d) 0.4

The element which was observed in solar spectrum is:
Specific charge of electron is :

A semiconductor dopped with a donor impurity is

(a) P-type

(b) N-type

(c) NPN type

(d) PNP type

The centre of mass of a system of particles is at the origin. It follows that:
  1. The number of particles to the right of the origin is equal to the number of particles to the left.
  2. The total mass of the particles to the right of the origin is same as the total mass to the left of the origin.
  3. The number of particles on X-axis should be equal to the number of particles on Y-axis.
  4. If there is a particle on the positive X-axis, there must be at least one particle on the negative X-axis.
  5. None.

In a nuclear reaction, which of the following is conserved

(a) Atomic number

(b) Mass number

(c) Atomic number, mass number and energy

(d) None of these