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An electric iron draws a currunt of 3.4 amphere from the 220 volt supply line.what currunt will this electric iron draws when connected to 110 volt supply line. |
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Answer» Amp V = 220 VoltsElectric iron has a resistance = R V = I R => R = V / I = 220 / 3.4 = 64.7 Ω When the electric iron is connected to a 110 Volts supply, I = V / R = 110 / 64.7 = 1.7 Amp.================Alternately, As the voltage BECOMES HALF of its value, the current becomes half of its value, as the current is directly proportional to the potential difference ACROSS a conductor or a resistor. This is as per Ohm's LAW. |
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