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संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Ammeter.
If 20 C of charge pass a point in a circuit in 1 s, what current is flowing?
A Radio Set Draws a Current of 0.36 a for 15 Minutes. Calculate the Amount of Electric Charge that Flows Through the Circuit.
Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45
Electrical appliances have voltage and power ratings as listed below. Which
has the larger working resistance?
| Appliances | Voltage (V) | Power (W) |
| (a) Washing machine | 250 | 3000 |
| ( b) Television | 240 | 160 |
| (c)240 | 240 | 1500 |
| ( d) Hair curler | 250 | 20 |
| ( e) Car head lamp | 12 | 36 |
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
An electrical appliance is rated at 1000 KVA, 220V. If the appliance is operated for 2 hours, calculate the energy consumed by the appliance in: (i) kWh (ii) joule.
One unit of electrical energy consumed is equal to 1000 kilowatt-hour.
