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SL ARORA-HEATING EFFECT OF CURRENT-All Questions
- Two heater coils made of the same material are connected in parallel a...
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- What voltage drop is there across 1kW electric heater, whose resistanc...
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- An electric current of 2.0 A passes through a wire of resistance 25 Om...
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- An ammeter reads a current of 30A when it is connected across the term...
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- A coil of resistance 100 Omega is connected across a battery of emf 6....
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- A 100W and a 500W bulbs are joined in series and connected to the main...
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- Two bulbs are market 220V, 100W and 220V,50W respectively. They are co...
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- We have a 30 W, 6 V bulb , which we want to glow by a supply of 120 V ...
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- Two electric lamps are rated as 220V. 40 W and 220V,60W. Find the heat...
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- In a house having 220 V line , the following appliances are operating ...
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- How many 60W bulbs may be safely used on 220V line using a 5A fuse?
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- An electric heater consists of 10m long nichrome wire of 2.5xx10^(-6)m...
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- The resistances of 20Omega are connected to a source of emf. Calculate...
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- A line having a total resistance of 0.2 omega delivers 10 KW at 220 V ...
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- A motor operating on 120 V draws a current of 2 A . If the heat is dev...
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- A small electric motor is rated 1/8H.P. and is running at 230V supply....
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- A 500W electric heater is designed to work with a 200 V line. If the v...
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- A 50 W bulb is connected in a 200V line. Determine the current flowing...
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- Three equal resistor connected in series across a source of enf toget...
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- A room is lighted by 200W,124 V incandescent lamps fed by a generator ...
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