(7%) Problem 4: An extension cord that has a length of 7.05 m is made from wire with a resistivity of 8.14 X 1078 Q - m and a diameter of 0.687 cm. & 50% Part (a) What is the resistance, in ohms, of the extension cord? R=|l Q Grade Summary Deductions Potential 100% tanh() Submissions Attempts remaining: 1 ( per attempt) detailed view Hints: deduction per hint. Hints remaining: 1 @Degrees O Radians | Submit Hint Feedback: deduction per feedback. & 50% Part (b) If a current of 1.26 A passes through the wire, then what is the voltage, in volts, between the ends of the extension cord