Electric Circuits A delta connection contains three equal impedance of 60 Ω. The impedance of the equivalent star connection for each star load will be 15 Ω. 40 Ω. 20 Ω. 30 Ω. 15 Ω. 40 Ω. 20 Ω. 30 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two wires of A and B of the same material and length ‘l’ and ‘2l’ have radius ‘r’ and ‘2r’ respectively. The ratio of their specific resistance will be 1:1. 1:2. 4:1. 1:8. 1:1. 1:2. 4:1. 1:8. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance R / n2. nR . n2 / R. n2R. R / n2. nR . n2 / R. n2R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In the circuit shown below, what is the voltage across 5 Ω resistor? 34.4 V. -28.4 V. None of them -27.4 V. 34.4 V. -28.4 V. None of them -27.4 V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Whenever current is supplied by a source its terminal voltage increases. decreases. increases exponentially. remains constant. increases. decreases. increases exponentially. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Power factor can be defined as both option B and C. cosine of angle between voltage and current. sine of voltage and current. ratio of resistance versus impedance. both option B and C. cosine of angle between voltage and current. sine of voltage and current. ratio of resistance versus impedance. ANSWER DOWNLOAD EXAMIANS APP
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