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Current Electricity
A resistance having rating 10 ohms , 10 W is likely to be a
Metallic resistor
Wire wound resistor
Carbon resistor
Variable resistor
Metallic resistor
Wire wound resistor
Carbon resistor
Variable resistor
Answer
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Related Question
Current Electricity
Voltage dependent resistors are usually made from
Charcoal
Graphite
Silicon carbide
Nichrome
Charcoal
Graphite
Silicon carbide
Nichrome
Answer
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Current Electricity
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is
6.4 A, 9.6 A
4.6 A, 6.9 A
4.6 A, 9.6 A
6.4 A, 6.9 A
6.4 A, 9.6 A
4.6 A, 6.9 A
4.6 A, 9.6 A
6.4 A, 6.9 A
Answer
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Current Electricity
Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.
Resistor
Capacitor
Reactor
Inductor
Resistor
Capacitor
Reactor
Inductor
Answer
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Current Electricity
Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct?
40 W lamp will fuse
100 W lamp will glow brighter
Both lamps will glow equally bright
40 W lamp will glow brighter
40 W lamp will fuse
100 W lamp will glow brighter
Both lamps will glow equally bright
40 W lamp will glow brighter
Answer
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Current Electricity
In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains
Length of heating element should be decreased
None of these
Length of heating element should be increased
Length of heating element has no effect on heating if water
Length of heating element should be decreased
None of these
Length of heating element should be increased
Length of heating element has no effect on heating if water
Answer
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