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प्रश्न
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उत्तर
Conductance is a measure of the ease of flow of current through a conductor. It is defined as the reciprocal of the resistance of the conductor. It is represented by C.
Mathematically,
`C = 1/R`
where R is the resistance of the conductor.
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संबंधित प्रश्न
Which unit could be used to measure current?
(a) Watt
(b) Coulomb
(c) Volt
(d) Ampere
For a heater rated at 4 kW and 220 V, calculate:
(a) the current,
(b) the resistance of the heater,
(c) the energy consumed in 2 hours, and
(d) the cost if 1 kWh is priced at Rs 4.60.
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.
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. The resistance of each heater
In current electricity, a positive charge refers to ______.
State whether true or false. If false, correct the statement.
Current can produce magnetic field.
The flow of electric charge per unit time is called potential difference.
