Electric Circuits If the three colour bands of a resistor are grey, violet and gold, what is the value of the resistor? 8.7 ohms. 9.7 ohms. 6.7 ohms. 7.7 ohms. 8.7 ohms. 9.7 ohms. 6.7 ohms. 7.7 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 400 Ω. 40 Ω. 800 Ω. 4 Ω. 400 Ω. 40 Ω. 800 Ω. 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by σ ω ε. ω ε/σ. ω σ/ε. σ/ω ε. σ ω ε. ω ε/σ. ω σ/ε. σ/ω ε. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be 0.25. 0.5. 2. 4. 0.25. 0.5. 2. 4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant? 4 μsec 2 msec 4 msec 2 μsec 4 μsec 2 msec 4 msec 2 μsec ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA. 900 130 400 250 900 130 400 250 ANSWER DOWNLOAD EXAMIANS APP
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