EEE :: Current Electricity
- In the case of direct current
- In a lamp load when more than one lamp are switched on the total resistance of the load
- A 3 Q resistor having 2 A current will dissipate the power of
- The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?
- The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is
- Voltage dependent resistors are used
- With rise in temperature the resistance of pure metals
- Which of the following statement is correct?
- Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct?
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A.
A semiconductor is a material whose conductivity is same as between that of a conductor and an insulator |
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B.
A semiconductor is a material which has conductivity having average value of conductivity of metal and insulator |
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C.
A semiconductor is one which conducts only half of the applied voltage |
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D.
A semiconductor is a material made of alternate layers of conducting material and insulator |