A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.

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Solution

Current $(I) = 1.2 A$
Potential difference or Voltage $V = 6.0 V$
Resistance $R = ?$
According to Ohm's Law:
$V = I R$
Then, $R = \frac{V}{I}$
$R = \frac{6}{1.2}$
$R = 5 Ω$

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A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.

Current (I)=1.2APotential difference or Voltage V=6.0VResistance R=?According to Ohm's Law:V=IRThen, R=VIR=61.2R=5Ω

Current $(I) = 1.2 A$
Potential difference or Voltage $V = 6.0 V$
Resistance $R = ?$
According to Ohm's Law:
$V = I R$
Then, $R = \frac{V}{I}$
$R = \frac{6}{1.2}$
$R = 5 Ω$