Question
A coil with an internal resistance of $120 \Omega$ and inductance of $12.0 \mathrm{H}$ is connected to a $60.0-\mathrm{Hz}, 110-\mathrm{V}$ ms line. (a) What is the impedance of the coil? (b) Calculate the current in the coil.
Step 1
Step 1: The impedance of the coil is given by the formula $Z = \sqrt{R^2 + (2\pi fL)^2}$, where $R$ is the resistance, $f$ is the frequency, and $L$ is the inductance. Show more…
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A coil with an internal resistance of $120 \Omega$ and inductance of $12.0 \mathrm{H}$ is connected to a $60.0 \mathrm{Hz}, 110 \mathrm{V} \mathrm{rms}$ line. (a) What is the impedance of the coil? (b) Calculate the current in the coil.
A coil has an inductance of $0.100 \mathrm{H}$ and a resistance of $12.0 \Omega$. It is connected to a $110-\mathrm{V}, 60.0$ - $\mathrm{Hz}$ line. Determine $(a)$ the reactance of the coil, $(b)$ the impedance of the coil, $(c)$ the current through the coil, ( $d$ ) the phase angle between current and supply voltage, $(e)$ the power factor of the circuit, and $(f)$ the reading of a wattmeter connected in the circuit.
A coil has an inductance of $0.100 \mathrm{H}$ and a resistance of $12.0 \Omega$. It is connected to a $110-\mathrm{V}, 60.0$ -Hz line. Determine $(a)$ the reactance of the coil, $(b)$ the impedance of the coil, $(c)$ the current through the coil, (d) the phase angle between current and supply voltage, $(e)$ the power factor of the circuit, and ( $f$ ) the reading of a wattmeter connected in the circuit.
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