A wire with resistanceR is connected to the terminals of a 30 V battery. What is the potential difference ΔVends between the ends of the wire?What is the currentI through the wire, if the wire has the resistance 1.0Ω? What is the currentI through the wire, if the wire has the resistance 2.0Ω? What is the currentI through the wire, if the wire has the resistance 3.0Ω?
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