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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoA hot plate of an electric oven connected to a \(220\ V\) line has two resistance coils \(A\) and \(B\), each of \(24\ Ω\) resistance, which may be used separately, in series, or in parallel. What are the currents in the three cases?
Case (i): When the coils are used separately
From Ohm’s law, the current flowing through each coil is
On substituting the known values in the above equation, we get the current \(I\ =\)
Case (ii): When the coils connected in series
The total resistance in a series circuit is \(Ω\)
The current flowing through each resistor when they are connected in series is \(A\)
Case (iii): When the coils connected in parallel
When the coils are connected in parallel, the equivalent resistance is \(Ω\)
The current flowing through each resistor when they are connected in parallel is \(A\)
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