Electrical Questions: Resistance, Resistor & Ohm's Law

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The discussion focuses on three electrical questions related to resistance and Ohm's Law. The first question involves determining the relative resistance of two copper wires with the same length but different diameters, specifically when one wire's diameter is twice that of the other. The second question requires calculating the resistance value and tolerance of a resistor based on its color bands: blue, orange, green, and silver. The third question compares a measured resistance of 6.522kΩ with a calculated value to determine the error percentage and verify Ohm's Law. Participants are encouraged to attempt solving these problems independently rather than simply posting them.
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i have some questions.

1. Given two pieces of copper wire which have same length but different diameters and based on equation R=ρ(L/A),determine the relative resistance of a piece of wire provided that its diameter is twice as long as that of the other one.

2. Given a resistor with bands 1=blue,2=orange,3=green,4=silver;find the resistance value and tolerance.

3. Comparing the measured 6.522kΩ with the calculated one , state the error percentage
and verify whether the Ohm's Law is correct.
 
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Please make an attempt at solving the problems on your own, and don't just post a set of problems.
 
I need help...please me!
 
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