Physics Test 20...

Which one of the following statements about the atomic nucleus is accurate?

The quantization of charge has little practical consequence and can be ignored at the

What is the de-Broglie wavelength associated with an electron accelerated through a potential of 100 volts?

Given N resistors each of resistance R are first combined to get minimum possible resistance and then combined to get maximum possible resistance. The ratio of the minimum to maximum resistance is

When a negatively charged conductor is connected to earth,

According to the standard convention, the electric potential at a point infinitely far from a charge is taken to be:

Photon has a charge of

Artificial disintegration with alpha particles of which of the following led to the discovery of neutron?

Three resistors of 4Ω, 12Ω , and 6Ω are connected in parallel. No. of 12Ω resistors required to be connected in parallel to reduce the total resistance to half of its original is

Three identical cells, each of 4 V and internal resistance r, are connected in series to a 6 ohm resistor. If the current flowing in the circuit is 2 A. The internal resistance of each cell is