Four long straight wires are laid out on a grid as follows:

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.025 N/m. What is the current in the wires, given they are separated by 2.00 cm? 60 A None above 50 A 15 A 30 A

The above picture depicts a moveable vertical conducting bar sliding on fixed conducting rails. v → = 2.3 m/s and B → is 0.65 T and out of the page. What is the current in the system? Group of answer choices 0.30 A 1.5 A 0.012 A 0 A 7.5 A

Four wires meet a junction. The first carries 4.0 A into the junction, the second carries 5.0 A out of the junction, and the third carries 2.0 A into the junction. What is the magnitude and the direction of the current on the fourth wire? 1.0 A into the junction 1.0 A out of the junction. 3.0 A into of the junction. 3.0 A out of the junction.

A copper wire with a square cross-section (side length 5.00 µm) is next to an iron wire with a rightward current of 3.00 A. The two wires are parallel over a region of 20.0 cm, where they are 1.60 cm apart. The iron wire produces a magnetic field on the copper wire. The copper wire is connected to a 5.00 V power source, with current directed rightward. Data of copper: resistivity = 1.68 x 10-8 Ohm m; free electron number density = 8.50 x 1028/m3

Two VERY LONG wires are placed along parallel lines as shown below in the picture. The wire ON THE LEFT (at X:= 0) has a current going out of the page of value, I1 ='4 A. The current on the RIGHT (at X2= d) has a current going into the page of the page of value, l2 = 6 A. The point "P" is at the location (x=6.00cm, z=10.4cm) Wire 1 Wire 2 a. Find the magnitude of the magnetic field due to wire 2 at the location of wire 1 The Biot-Savart law say the direction of the magnetic field at a field point located in a direction (from source to field point) where a source wire carries a current in the î is Pxi the direction of the magnetic field due to wire2 at the location of wire1. c. Using the formula format find the force per unit length in "I.j,k" 1, 1, x B, d. Find the magnitude of the magnetic field due to wire2 at the location of field point P e. Find the unit directions for f and î and perform the cross product to determine the direction of the magnetic field due to wire2 at the…

Compute for the current across the circuit USING KIRCHHOFF'S LAW

A caterpillar of length 6.00 cm crawls in the direction of electron drift along a 8.20-mm-diameter bare copper wire that carries a uniform current of 38.0 A. (a) What is the potential difference between the two ends of the caterpillar? (b) Is its tail positive or negative relative to its head? (c) How much time does the caterpillar take to crawl 2.30 cm if it crawls at the drift speed of the electrons in the wire? (The number of charge carriers per unit volume is 8.49 × 1028 m-3 and resistivity of copper is 1.69 × 10-8 Ω·m.)

Two VERY LONG wires are placed along parallel lines as shown below in the picture. LEFT (at Xı= 0) has a current going out of the page of value, I = 4 A. The current on the RIGHT (at X2= d) has a current going into the page of the page of value, 2 = 6 A. The point "P" is at the location (x=6.00cm, z=10.4cm) The wire ON THE d d Wire 1 Wire 2 a. Find the magnitude of the magnetic field due to wire 2 at the location of wire 1 The Biot-Savart law say the direction of the magnetic field at a field point located in a direction f (from source to field point) where a source wire carries a current in the direction î is îxî b. Find the unit directions for î and Î and perform the cross product to determine the direction of the magnetic field due to wire2 at the location of wire1. c. Using the formula format find the force per unit length in "Ij,k" = 1, I, x B, d. Find the magnitude of the magnetic field due to wire2 at the location of field point e. Find the unit directions for f and Î and…