3) How much current will be flowing through a 40m length of copper wire with radius 4 mm if it is connected to a source supplying 16 V? (The resistivity of copper is 1.68*10^-8*mA) 68 nA B) 1200 A C) 9.5 x 108 A D) 710 A
5) A 3.0 V battery that can store 400J of energy is connected to a resistor. How much electrical charge must flow between the battery's terminals to completely drain the battery if it is fully charged?A) 0.02 C B) 1200 C C) 130 C D) 0.01 C
6 A 5.0V potential difference is applied between the ends of a 0.80mm -diameter, 90cm -long nichrome wire.6 cont.
Part A What is the current in the wire?Express your answer using two significant figures.I = A