Physics Which of the following features of a tunnel diode is its drawback Extremely high frequency response Very wide temperature range of operations Very low power consumptions Instability due to negative resistance Extremely high frequency response Very wide temperature range of operations Very low power consumptions Instability due to negative resistance ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Pure silicon Nichrome Platinum Copper Pure silicon Nichrome Platinum Copper ANSWER DOWNLOAD EXAMIANS APP
Physics Circuit breaker usually operate under Sub-transient state of short-circuit current Steady state of short-circuit current Transient state of short-circuit current After D. C. component has ceased Sub-transient state of short-circuit current Steady state of short-circuit current Transient state of short-circuit current After D. C. component has ceased ANSWER DOWNLOAD EXAMIANS APP
Physics Skating on ice is possible because Ice is cold The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The surface of ice is smooth The pressure on the ice due to skate raises its melting point Ice is cold The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The surface of ice is smooth The pressure on the ice due to skate raises its melting point ANSWER DOWNLOAD EXAMIANS APP
Physics Decibel is the unit used for Intensity of sound Radio wave frequency Speed of light Intensity of heat Intensity of sound Radio wave frequency Speed of light Intensity of heat ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.21111111111111 0.12638888888889 0.12777777777778 0.20902777777778 0.21111111111111 0.12638888888889 0.12777777777778 0.20902777777778 ANSWER DOWNLOAD EXAMIANS APP
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