Explanation Given: A square loop of side 8.0 cm and the resistance 0.20Ω is moved into a magnetic field. A current of 150 mA is induced in the loop in the ccw direction. The side of the loop a = 8.0 cm = 0.08 m The resistance of the loop R = 0.20Ω The induced current I = 150 mA Formula used: The emf induced on the loop, when it is moving perpendicular to the increasing magnetic field is given by the Faraday’s law ε i n d u c e d = − d ϕ d t Where, W is the magnetic flux and is given by ϕ = A × B ε i n d u c e d = − d ( A × B ) d t ε i n d u c e d = − A d ( B ) d t -------- 1 Where A is the area of the loop The current in the loop is given by I = ε i n d u c e d R ε i n d u c e d = I R ------- 2 Calculation: The emf induced in the loop is calculated from the equation 2 ε i n d u c e d = 150 × 10 − 3 × 0

1st Edition

ISBN: 9781323834831

Author: Knight

Publisher: PEARSON C

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Concept explainers

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.

Question

Chapter 30, Problem 15EAP

To determine

The strength of the magnetic field and also to find that it is increasing or decreasing if a square loop of resistance 0.20Ω moving into it and a current of 150 mA is induced in the ccw.

Expert Solution & Answer

Chapter 30 Solutions

PHYS 212 FOR SCI+ENG W/MAST PHYS >ICP<

Ch. 30 - Prob. 1CQ Ch. 30 - You want to insert a loop of copper wire between...Ch. 30 - A vertical, rectangular loop of copper wire is...Ch. 30 - Does the loop of wire in FIGURE Q30.4 have a...Ch. 30 - s5. The two loops of wire in FIGURE Q30.5 are...Ch. 30 - FIGURE Q30.6 shows a bar magnet being pushed...Ch. 30 - A bar magnet is pushed toward a loop of wire as...Ch. 30 - FIGURE Q30.8 shows a bar magnet. a coil of wire,...Ch. 30 - Prob. 9CQ Ch. 30 - An inductor with a 2.0 A current stores energy. At...

Ch. 30 - Prob. 11CQ Ch. 30 - Prob. 12CQ Ch. 30 - Rank in order, from largest to smallest, the three...Ch. 30 - For the circuit of FIGURE Q30.14: a. What is the...Ch. 30 - The earth’s magnetic field strength is 5.0105T ....Ch. 30 - A potential difference of 0.050 V is developed...Ch. 30 - A 10 -cm-long wire is pulled along a U-shaped...Ch. 30 - What is the magnetic flux through the loop shown...Ch. 30 - FIGURE EX30.5 shows a 10cm10cm square bent at a 90...Ch. 30 - Prob. 6EAP Ch. 30 - Prob. 7EAP Ch. 30 - FIGURE EX30.8 shows a 2.0 -cm-diameter solenoid...Ch. 30 - Prob. 9EAP Ch. 30 - 10. A solenoid is wound as shown in FIGURE...Ch. 30 - 11. The metal equilateral triangle in FIGURE...Ch. 30 - The current in the solenoid of FIGURE EX3O.12 is...Ch. 30 - The loop in FIGURE EX30.13 is being pushed into...Ch. 30 - FIGURE EX30.14 shows a 10-cm-diameter loop in...Ch. 30 - Prob. 15EAP Ch. 30 - 16. A -turn coil of wire cm in diameter is in a...Ch. 30 - A 5.0 -cm-diameter coil has 20 turns and a...Ch. 30 - FIGURE EX30.18 shows the current as a function of...Ch. 30 - The magnetic field in FIGURE EX30.19 is decreasing...Ch. 30 - The magnetic field inside a -cm-diameter solenoid...Ch. 30 - Scientists studying an anomalous magnetic field...Ch. 30 - Prob. 22EAP Ch. 30 - Prob. 23EAP Ch. 30 - Prob. 24EAP Ch. 30 - Prob. 25EAP Ch. 30 - Prob. 26EAP Ch. 30 - How much energy is stored in a -cm-diameter,...Ch. 30 - MRI (magnetic resonance imaging) is a medical...Ch. 30 - Prob. 29EAP Ch. 30 - Prob. 30EAP Ch. 30 - Prob. 31EAP Ch. 30 - Prob. 32EAP Ch. 30 - Prob. 33EAP Ch. 30 - Prob. 34EAP Ch. 30 - At t=0 s, the current in the circuit in FIGURE...Ch. 30 - The switch in FIGURE EX3O.36 has been open for a...Ch. 30 - Prob. 37EAP Ch. 30 - Prob. 38EAP Ch. 30 - Prob. 39EAP Ch. 30 - Prob. 40EAP Ch. 30 - A 10cm10cm square loop lies in the xy-plane. The...Ch. 30 - A spherical balloon with a volume of L is in a mT...Ch. 30 - Prob. 43EAP Ch. 30 - Prob. 44EAP Ch. 30 - Prob. 45EAP Ch. 30 - FIGURE P30.46 shows a 4.0-cm-diameter loop with...Ch. 30 - Prob. 47EAP Ch. 30 - Prob. 48EAP Ch. 30 - Prob. 49EAP Ch. 30 - Prob. 50EAP Ch. 30 - Prob. 51EAP Ch. 30 - Prob. 52EAP Ch. 30 - Prob. 53EAP Ch. 30 - Prob. 54EAP Ch. 30 - Prob. 55EAP Ch. 30 - Your camping buddy has an idea for a light to go...Ch. 30 - 57. The -wide, zero-resistance slide wire shown...Ch. 30 - ]58. You’ve decided to make the magnetic...Ch. 30 - FIGURE P30.59 shows a U-shaped conducting rail...Ch. 30 - Prob. 60EAP Ch. 30 - Prob. 61EAP Ch. 30 - Prob. 62EAP Ch. 30 - Equation 30.26 is an expression for the induced...Ch. 30 - Prob. 64EAP Ch. 30 - One possible concern with MRI (see Exercise 28) is...Ch. 30 - FIGURE P30.66 shows the current through a 10mH...Ch. 30 - Prob. 67EAP Ch. 30 - Prob. 68EAP Ch. 30 - Prob. 69EAP Ch. 30 - Prob. 70EAP Ch. 30 - An LC circuit is built with a inductor and an...Ch. 30 - Prob. 72EAP Ch. 30 - For your final exam in electronics, you’re asked...Ch. 30 - The inductor in FIGURE P30.74 is a -cm-long, -cm-...Ch. 30 - The capacitor in FIGURE P30.75 is initially...Ch. 30 - The switch in FIGURE P30.76 has been open for a...Ch. 30 - 77. The switch in FIGURE P30.77 has been open for...Ch. 30 - Prob. 78EAP Ch. 30 - Prob. 79EAP Ch. 30 - Prob. 80EAP Ch. 30 - In recent years it has been possible to buy a 1.0F...Ch. 30 - Prob. 82EAP Ch. 30 - Prob. 83EAP Ch. 30 - Prob. 84EAP Ch. 30 - A 2.0 -cm-diameter solenoid is wrapped with 1000...Ch. 30 - High-frequency signals are often transmitted along...

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