Question
What is the effect of a magnetic field on a current
carrying conductor? ÂSolution
According to Lorentz force law, a currentcarrying conductor in a magnetic field experiences a force perpendicular to both the magnetic field and the current.  This is the principle behind electric motors.  The direction of the force can be found using Fleming's lefthand rule
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force? Â
A tuning fork of frequency 440 Hz resonates with a pipe closed at one end, vibrating in its second overtone . If the speed of sound in air is 330 m/s, w...
Sensitivity of the human eye is maximum in the –
Smog is a combination of –
Charges +q and –q are placed at (–d, 0) and (+d, 0). A third charge Q is placed at (0, x). For what value of x will the force on Q be maximum?
The focal length of a concave mirror is 20 cm. Where should an object be placed to get an image of the same size?
The term ‘Isoneph' indicates the lines of equal –
Which of the following materials behaves as a dielectric?
Bernoulli's Principle is derived from which fundamental law?
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
