3 and 4 only wirealigator clipsMove the ire core back and forth through the solenoidUse a thicker wireReverse the connection to the batteryIncrease the number of wire coils around the iron corea.b.d.3.If you switch the connections to the power sources, the electricity in the electromagnet will flow in the oppositedirection. What will happen to the magnetic field as a result?Battery4.Explain why the magnetic field around the E-mag shown is incorrect.IGICBatteryWhich two answer choices correctly explains how an electromagnet and a bar magnet are similar?Both E-mags and bar magnets have an iron core.Both E-mags' and bar magnets' magnetic fields are strongest at the poles.Both E-mags' and bar magnets' opposite poles repel each otherBoth E-mags' and bar magnets' electrical charges flow north to south.Both E-mags and bar magnets have the ability to turn on/off.Both E-mags and bar magnets have the ability to be strengthened easily5.a.b.d.e.

Given : To answer the questions 3 and 4 only.

Answered: 3. If you switch the connections to the…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 102A

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3. If you switch the connections to the power sources, the electricity in the electromagnet will flow in the opposite direction. What will happen to the magnetic field as a result? Battery Explain why the magnetic field around the E-mag shown is incorrect.