Physics A bimetal made copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will None of these Bend towards right Remain straight Bend towards left None of these Bend towards right Remain straight Bend towards left ANSWER DOWNLOAD EXAMIANS APP
Physics Indicate the false statement about the resistance of a wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature It depends on material of wire It is directly proportional to the area of cross-section of wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature It depends on material of wire It is directly proportional to the area of cross-section of wire ANSWER DOWNLOAD EXAMIANS APP
Physics Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be P 3P 2p/ 3 P/3 P 3P 2p/ 3 P/3 ANSWER DOWNLOAD EXAMIANS APP
Physics A NOT gate can be implemented by: Two diodes A single resistor A single diode A single transistor Two diodes A single resistor A single diode A single transistor ANSWER DOWNLOAD EXAMIANS APP
Physics The light rays used for eliminating bacteria Microwave radiation Ultra-violet radiation Infrared rays X-rays Microwave radiation Ultra-violet radiation Infrared rays X-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Metals are good conductors of electricity because: All of these The atoms are lightly packed. They have high melting point. They contain free electrons. All of these The atoms are lightly packed. They have high melting point. They contain free electrons. ANSWER DOWNLOAD EXAMIANS APP
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