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प्रश्न
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उत्तर
Electric intensity is defined as the force experienced by a unit positive charge when kept at that point.
Its SI unit is newton per coulomb. It is a vector quantity.
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संबंधित प्रश्न
A current of 4 A flows around a circuit for 10 s. How much charge flows past a point in the circuit in this time?
Name two devices which work on the heating effect of electric current.
Calculate the equivalent resistance between A and B in the adjacent diagram.
Two resistors of 2.0 Ω and 3.0 Ω are connected (a) in series (b) in parallel, with a battery of 6.0 V and negligible internal resistance. For each case draw a circuit diagram and calculate the current through the battery.
A charge of 80 C flows in a conductor for 2 minutes.
(a) Calculate the current flowing through the conductor.
(b) If the current through a heater is 4 A what charge must be passing in 8 seconds?
Tick (✓) the correct choice among the following :
(a) A strong short bar magnet is dropped into a solenoid connected to a
galvanometer as shown in fig . The galvanometer shows a deflection to the left when the current in the coil as seen from above is counter clockwise. Which one of the following shows the correct deflection of the galvanometer when the magnet is at posi tions A, Band C.
An electric bulb is rated '100 W, 250 V'. How much current will the bulb draw if connected to a 250 V supply?
An electric iron is rated 750 W, 230 V. Calculate the electrical energy consumed by the press in 16 hours.
State the condition when it is advantageous to connect cells in parallel.
