Question
Write the definition of electric current and mention its types.

Answer

→"The amount of electric charge passing through the cross-section perpendicularly through the cross-section of a conductor per unit time is called electric current (I)."
There are two types of electric current.
(1) momentary current
(2) steady current

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

What is a filter circuit? Explain its functioning.
Suppose the tube in the previous problem is kept vertical with A upward but the other conditions remain the same. The separation between the cross- sections at A and B is $\frac{15}{16}\text{cm}.$ Repeat parts (a), (b) and (c) of the previous problem. Take $g = 10m/s^2$.
Calculate the potential energy of a single charge in an external field.
A particle executes simple harmonic motion with an amplitude of 10cm. At what distance from the mean position are the kinetic and potential energies equal?
Figure. shows two positions of a loop PQR in a perpendicular uniform magnetic field. In which position of the coil is there an induced emf?
A spectroscopic instrument can resolve two nearby wavelengths $\lambda$ and $\lambda+\Delta\lambda$ if $\frac{\lambda}{\Delta\lambda}$ is smaller than 8000. This is used to study the spectral lines of the Balmer series of hydrogen. Approximately how many lines will be resolved by the instrument?
Compare the direction of the magnetic field inside a solenoid with that of the field there if the solenoid is replaced by its equivalent combination of north pole and south pole.
Consider the situation shown in figure. The switch is closed at t = 0 when the capacitors are uncharged. Find the charge on the capacitor $C_1$ as a function of time t.
N small conducting liquid droplets, each of radius r, are charged to a potential V each. These droplets coalesce to form a single large drop without any charge leakage. Find the potential of the large drop.
Draw a labelled ray diagram of a reflecting telescope. Mention its two advantages over the refracting telescope.