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 2. 4. 0.25. 0.5. 2. 4. 0.25. 0.5. ANSWER DOWNLOAD EXAMIANS APP
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? 3 Ω and 6 Ω. 3 Ω and 9 Ω. 6 Ω and 9 Ω. 1.5 Ω and 3 Ω. 3 Ω and 6 Ω. 3 Ω and 9 Ω. 6 Ω and 9 Ω. 1.5 Ω and 3 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The electrical conductivity of metal is typically of the order of (in ohm - m) 105. 10 - 4. 107. 10 - 6. 105. 10 - 4. 107. 10 - 6. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when R = r. R > r. None of these R < r. R = r. R > r. None of these R < r. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the temperature of the inductor. square of instantaneous current. product of the instantaneous current and rate of change of current. square of the rate of change of current. temperature of the inductor. square of instantaneous current. product of the instantaneous current and rate of change of current. square of the rate of change of current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Among the options which metal has the highest electrical conductivity? Steel. Stranded aluminium. Aluminium. Copper. Steel. Stranded aluminium. Aluminium. Copper. ANSWER DOWNLOAD EXAMIANS APP
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