What would be the reading of ammeter and voltmeter in the given circuit?
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0
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3322
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March 17, 2018
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Three incandescent bulbs of 100 W each are connected in series in an electrical circuit. In another circuit another set of three bulbs of the same wattage are connected in parallel to the same source
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0
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1051
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March 17, 2018
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Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Q in series with a combination of two resistors (4 Q each) in parallel and a voltmeter across the parallel combination
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0
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3748
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March 17, 2018
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The components of an electric circuit are 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each, rheostat and a plug key
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0
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4508
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March 17, 2018
|
A wire of length L and resistance R is stretched so that its length is doubled and the area of cross-section is halved
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0
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32660
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March 17, 2018
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A metallic wire of resistance R is cut into ten parts of equal length. Two pieces each are joined in series and then five such combinations are joined in parallel
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0
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4591
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March 17, 2018
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Why does an electric bulb become dim when an electric heater in parallel circuit is switched on? Why does dimness decrease after sometime?
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0
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9339
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March 17, 2018
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What is electrical resistivity? In a series electrical circuit comprising of a resistor having a metallic wire, the ammeter reads 5 A
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0
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6238
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March 17, 2018
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A student has drawn the electric circuit to study Ohm’s law as shown in figure
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0
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1506
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March 17, 2018
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Two wires of equal length, one of copper and the other of manganin (an alloy) have the same thickness
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0
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6054
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March 17, 2018
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In the given circuit diagram, two resistance wires A and B are of same area of cross-section and same material, but A is longer than B. Which ammeter A1 or A2 will indicate higher reading for current?
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0
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13891
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March 17, 2018
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Heat is generated continuously in an electric heater but the temperature of its element becomes constant after some time
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0
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6408
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March 17, 2018
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Though the same current flows through line wires or the filament of a bulb, yet only the latter glows. Why?
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0
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7478
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March 17, 2018
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Why is it not advisable to handle high voltage electrical circuit with wet hands?
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0
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2873
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March 17, 2018
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Why does resistance of a metallic conductor increase with increase in temperature?
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0
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10039
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March 17, 2018
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