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Is this an ohms law problem? Please walk me through this one. I am very grateful.
A cylindrical copper cable carries a current of 1200 A. There is a potential difference of 16 mv between the two points on the cable that are 24 cm apart. The number of carriers per unit volume of the current in the wire is 28 6.95 x 10^28th power.
Find the radius of the cable.
Find the average current density in the cable.
Find the drift velocity of the current.
The label on a 12.0-V truck battery states that it is rated at 219.0 A·h (ampere-hours), How much electric energy can the battery supply and How much charge in coulombs can be pumped by the battery
The coefficient of static friction among the floor of a truck and a box resting on it is 0.26. The truck is traveling at 84.1 km/hr. What is the least distance in which the truck can stop and ensure that the box does not slide?
A dolphin emits ultrasound at 100 kHz} and uses the timing of reflections to determine the position of objects in the water
A 6.0-cm-diameter circle lies in the xz-plane in a region where the electric field is E =(1200i^+1200j^+1200k^)N/C
A 0.390 kg iron horseshoe that is initially at 745 °C is dropped into a bucket containing 24 kg of water at 46 °C. What is the final equilibrium temperature? Overlook any heat transfer to or from the surroundings.
The resultant displacement has a magnitude of 6.6m directed at the angle of 137 degrees from the positive x axis.
Oppositely charged parallel plates are separated by 4.49 mm. A potential difference of 600 V exists between the plates. What is the magnitude of the electric field between the plates
A battery with an emf of 12 V and an internal resistance of 1Ω is used to charge a battery with an emf of 10 V and an internal resistance of 1 Ω. Discover the current in the circuit.
find the magnetic field strength in gauss for a current of 3.7 a in the helmholtz coils with 145 turn assuming a coil
suppose you wish to fabricate a uniform wire out of 2.30 g of copper. if the wire is to have a resistance of r 0.500
Compute the rms values of the electric current and voltage, the complex power, and the real and reactive power flowing into the line - The line-to-neutral and the line-to-line voltage magnitudes of phase a at the combined load terminals.
A proton, initially traveling in the +x-direction with a speed of 5.00×105m/s, enters a uniform electric field directed vertically upward, What is the strength of the electric field
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