The electric potential at a distance d from a point charg...
The electric potential at a distance d from a point charge q in air of permittivity eo is expressed as?
q2 ÷ 4πeod
q2 ÷ 4πeo
q ÷ 4πeod2
q ÷ 4πeod
q ÷ 4πeo2d
Correct answer is D
The electric potential at a point in an electric field is defined as the amount of work done in moving a unit positive charge from infinity to that point against the action of the field.
V = \(\frac{Q}{4 π∈r}\)
The force per unit charge experienced at a point in a field is the ...
A bar of initial length /0 is heated through a temperature change Δt to a new length I. The...
During the nuclear reaction described by 235W →235X→231Y929391 the particles emitted are resp...
A cell can supply currents of 0.60 A and 0.30 A through a 2.0 ω and a 5.0 ω resistor res...
Which of the following statements is correct about light and sound waves? Both ...