Physics

A cylindrical copper cable carries a current of 1070 A. There is a potential difference of 1.6 10-2 V between two points on the cable that are 0.22 m apart. What is the radius of the cable?

1. 👍 0
2. 👎 0
3. 👁 156

Similar Questions

1. Physics

A 0.62-mm-diameter copper wire carries a tiny current of 2.0 μA . The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m3. NA=6.02×1023 Estimate the electron drift velocity. Assume one free electron per atom.

2. phys102

a copper wire has a diameter of 1.02mm,the wire carries a constant current of 1.67A,the density of the free electrons is 8.5X10^28 e/m^3.calculate the current density and drift velocity

3. electromagnetic

Plane x = 10 carries current 100 mA/m along az while line x = 1, y = —2 carries filamentary current 20π mA along az Determine H at (4, 3, 2). pls i need it for my exam

4. math

a conductor having a cross sectional area of 0.00161 sq. in. carries a current of 4.5 amp. Calculate the electron velocity, assuming the wire to be a copper.

1. physics (thxs again)

Thank you for the help :) A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when the potential difference is 4V. This samples is: a) obeys ohm's law b) has a resistance of 0.5 ohms

2. physical science

. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × 〖10〗^(-8) Ω m, find the least diameter of a copper cable that could be used (show work)

3. physics

The emf of a battery is equal to its terminal potential difference: A) under all conditions B) only when the battery is being charged C) only when a large current is in the battery D) only when there is no curent in the battery E)

4. Electrical

a conductor having a cross-sectional area of 0.00161 sq.in. carries a current of 4.5amp. calculate the electron velocity, assuming the wire to be (a) copper, (b) aluminum.

1. Science

A cooper wire has a diameter of 1.02 mm and carries a constant current of 1.67 A. If density of free electron in copper is 8.5×10^28 m-3 calculates the current density and the drift velocity of the electron

2. physics

A source of e.m.f 110v and frequency 60hz is connected to a resistor, an indicator and a capacitor in series. When the current in the capacitor is 2A.the potential difference across the resistor is 80v and that across the inductor

3. physics

Two very long, straight, parallel wires carry currents that are directed perpendicular. Wire 1 carries a current I1 into the page (in the -z direction) and passes through the x axis at x = +a. Wire 2 passes through the x axis at x

4. Physics

A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R1, and it carries a current I0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell