The correct answer is A
The unit 'Weber' is associated with which of the following?
Which phenomenon does a hologram use to create an image?
Which of the following is the best conductor of electricity?
Which instrument is used to measure the moisture content in the air?
The curie law, x = C/T, expressing susceptibility x varying with absolute temperature T, is obeyed by:
The instrument used to measure the speed of the wind is –
What is the magnitude of magnetic force per unit length on a wire carrying a current of 10 A and making an angle of 30° with the direction of a unif...
A toroid has a core (non-ferromagnetic) of inner radius 23 cm and outer radius 28 cm, around which 4000 turns of a wire are wound. If the current in th...
Cathode rays when obstructed by metal cause emission of -
The mass of a star is two times the mass of the Sun. How it will come to an end?