Other Physics Answers

If the potential difference between two points 2cm apart in an electric field is 20V, the electric field intensity between these points will be around

Calculate the resistance of a piece of wire of length 200cm given that it's resistivity is 5.4x10^-9 ohm meter. If the cross sectional area of the wire is 9.5x10^-5 cm^2

Find the wavelength for a typical am radio wave with frequency 1000KHz

Two batteries A and B each of emf 2 volts are connected in series to external resistance R = 1ohms. Internal resistance of A is 1.9 ohms and that of B is 0.9 ohms, what is the potential difference between the terminals of battery A

An electric cable contains a single copper wire of radius 9mm. It's resistance is 5 ohms. This cable is replaced by 6 insulated copper wires, each of radius 3mm. The resultant resultance of cable will be?

A wire of 5 ohms resistance is drawn so that it's new length is two times the original length. If the resistivity of the wire remains the same and the cross sectional area is halved, the new resistance is?

The electric field intensity at a point situated 4 meters from a point charge is 200N/C. If the distance is reduced to 2 meters, the field intensity will be?

Flourrescence occurs within

An object 5cm in height is placed 10cm from a curved mirror and produces an image of 6.5cm height. Where is the image located and what type of mirror is this?

An object 5cm high is placed 20cm in front of a concave mirror so that it produces an image of 60cm from the mirror. Find the height of this image