Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 5 kWh 2 kWh 6 kWh 3.2 kWh 5 kWh 2 kWh 6 kWh 3.2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Shape of cross-section Material Cross-sectional area Temperature Shape of cross-section Material Cross-sectional area Temperature ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best conductor of electricity? Silver Zinc Copper Gold Silver Zinc Copper Gold ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are usually made from Silicon carbide Nichrome Graphite Charcoal Silicon carbide Nichrome Graphite Charcoal ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Conductors Semi-conductors Insulators Inductors Conductors Semi-conductors Insulators Inductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Becomes insensitive to pain Is excited Begins to weep Begins to laugh Becomes insensitive to pain Is excited Begins to weep Begins to laugh ANSWER DOWNLOAD EXAMIANS APP
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