Cannot be answered, unless you assume the max current produces 100W. When choosing resistors, that is an unwise decision.
But assuming the unwise choice, the resistance of the resistor is
P=v^2/R
R= 50^2/100=25 ohm
current initial= 2 amps
I(t)=2e^(-T/RC)
than find magnetic field from the current.
Answer the following question:Be sure to show all work. Include formulae and units.Be sure to include relavant, meaningful diagram and a complete circuit diagram with circuit related problem. take enough space, don't try to squeeze everything on a small space!(problems are from:principle of physics:calculus based; Chapter:current and direct current circuits and Magnetic forces - Magnetic field)
Q.n.1) A 50-volt battery is connected by a long straight wire to a 100 W resistor and 12,500 µF capacitor in series. If the capacitor is initially uncharged, what will be the magnitude of the magnetic field 1 mm from the wire two seconds after the circuit is connected?
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