A current of 3A is carried by a copper wire having 10'6 m2 area of cross section. What is the correct value of average drift velocity, if the number of electrons per cubic metre is 9X10”?

Lisa is sitting in a parked car. She noticed Ryan approaching towards the car in the side view mirror of R = 2m. How fast the image of Ryan appears to move when he is 39m away?

Consider a parallel plate capacitor in which the plates are separated by 3.0 mm. The area of each of these plates is 120 cm2. A 450 V supply is used for Charging this capacitor. What is the correct value of electrostatic energy stored by the capacitor?

Suppose a plano — convex lens is placed on an optically f‌iat glass plate. The radius of the lens is 3m and the lens is illuminated by monochromatic light. What is the wavelength of the light used. if the radius of the 8”1 dark ring is 4.2mm?

What is the force on a conductor of the length 60 cm carrying a current of 5A which is placed perpendicular to a magnetic field of induction 4 x10'3 T?

Consider two slits that are 0.5 mm apart. These slits are illuminated by the light of wavelength 5000 A. What is the separation between the second bright fringe on both the sides of central maximum, if the screen is placed at 1 m distance from the slits?

When we move around through space just a little bit, we are moving _____.

_________________ is the movement of an object or a change in its physical structure.

The distance between two successive peaks of a wave is called a ___________.

If an object is rotating clockwise, this corresponds to a _____ angular velocity.

Fluid intelligence includes _____.