Electric Circuits Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances? 6 Ω and 9 Ω. 3 Ω and 9 Ω. 3 Ω and 6 Ω. 1.5 Ω and 3 Ω. 6 Ω and 9 Ω. 3 Ω and 9 Ω. 3 Ω and 6 Ω. 1.5 Ω and 3 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A piece of copper and another piece of germanium are cooled from room temperature to 80K. The resistance of copper increases and germanium decreases. copper decreases and germanium increases. each of them increases. each of them decreases. copper increases and germanium decreases. copper decreases and germanium increases. each of them increases. each of them decreases. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Unit step function is first derivative of impulse function. ramp function. gate function. parabolic function. impulse function. ramp function. gate function. parabolic function. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? RYB. BYR. YBR. RBY. RYB. BYR. YBR. RBY. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is RBY. RYB. BRY. YRB. RBY. RYB. BRY. YRB. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The electrical conductivity of metal is typically of the order of (in ohm - m) 10 - 4. 107. 105. 10 - 6. 10 - 4. 107. 105. 10 - 6. ANSWER DOWNLOAD EXAMIANS APP
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