Question

1. If the current in the wire inside a lightbulb is 3A, what is the current in the connecting wire going into the lightbulb? O The connecting wire must have a current of more than 3A O The connecting wire must have a current of 3A O The connecting wire must have a current of less than 3A 2. Which of the following best describes the source of all magnetic fields? O Magnetic fields are due to magnetically charged particles O Magnetic fields are due to the presence of metal atoms O Magnetic fields are due to moving charged particles O Magnetic fields are due to 3. A magnetic field can exert a force on an object, but only if The object has an electric charge The object is in motion O The object's motion is perpendicular to the direction of the magnetic field O All of the above musts be true 4. If a current is running through a wire, which of the following will be induced around the wire? O A reverse current O A gravitational field O A magnetic field O A sound wave 5. If a proton is moving at a speed of 5 m/s to the right () through a uniform magnetic field tha the left (), which of the following describes the force the proton feels? O The proton feels a force pushing it upward O The proton feels a force pushing it downward The proton feels a force pushing it to the right O The proton feels a force pushing it to the left O The proton feels zero force

Answer 1

1 According to torchoff current law current granting into bulb should be equal to current coming out of connecting wire. so option 2 connecting wire must have 3A. 2 option 3 produces magnetic moving charge field option 3 3) Faq VB sme so partich should be charged moving with relocity and perpendicular magnetic field. So All the above 4) According to Bio sauart law. current carrying wire produces magnetic field around it given by Mo I -B ophon 3 2TY Scanned with CamScanner