Each of the resistor shown in the figure has a resistance of 180.0 ohm. What is

Question

Each of the resistor shown in the figure has a resistance of 180.0 ohm. What is the equivalent resistance between points a and b of this combination? 720.0 ohm 450.0 o0hm 540.0 ohm 180.0 ohm Determine the current in the 7.0 ohm resistor for the circuit shown in the figure. Assume that the batteries are ideal and that all numbers are accurate to two significant figures. 2.1 A 1.3 A 1. A 0.28 A Two parallel straight wires are 7.0 cm apart and 50 m long. Each one carries a 18-A current in the same direction. one wire is securely, and the other is attached in the center to a movable cart. If the force needed to move the wire when it is not attached to the cart is negligible, with what magnitude force does the wire pull on the cart?(mu_0 = 4 pi times 10^-7 T middot m/A) 46 mN 93 mN 66 mN 37 mN Three very long straight, parallel wires each carry currents of 4.0 A, directed out of the page as shown in the figure. These wire pass through the vertices of a right isosceles triangle as shown. Assume that all the quantities shown in the figure are accurate to two significant figures. What is the magnitude of the magnetic field at point P at the midpoint of the hypotenuse of the triangle?)mu_0 = 4 pi times 10^-7 T middot m/A) 57 mu T 18 mu T 1.8 mu T 130 mu T 4.4 mu T

Explanation / Answer

rightmost two resistors are in parallel so,

1 / R1 = 1 / R + 1 / R

1 / R1 = 1 / 180 + 1 / 180

R1 = 90 ohm

resistance R1 and leftmost two resistances are in series so,

R2 = R1 + R + R

R2 = 90 + 180 + 180

R2 = 450 ohm

equivalent resistance = 450 ohm

*kindly post only one question in a single post

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