A circuit consists of a 3-volt battery; connecting wires with very low resistivity; a light bulb...
A circuit consists of a 3-volt battery; connecting wires with very low resistivity; a light bulb with resistance = 2Ω.
a. How much current is flowing through the bulb?
b. How much energy per second is converted from electrical potential energy to light and heat?
c. If the bulb is replaced with one with higher resistance, in what way (increase, decrease, stay the same) would voltage and current change?
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A circuit consists of a 3-volt battery; connecting wires with
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branch of the circuit. For instance, if light bulb 2 is unscrewed,
current flows only around the lower loop of the circuit, which
consists of...
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