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Physics 7 Online
OpenStudy (anonymous):

A 6.0 m section of wire carries a current of 5.2 A from east to west in the earth's magnetic field of 1.0 × 105 T at a location where the magnetic field points south. In which direction does the magnetic force act on the wire? (Points : 1) north south up down *** i think its south am i right?

OpenStudy (anonymous):

@amistre64 @asnaseer @iGreen

OpenStudy (anonymous):

@IrishBoy123 can you help me?

OpenStudy (irishboy123):

it can't be. all 3 are at right angles - the right hand rule. see attachment.

OpenStudy (anonymous):

North?

OpenStudy (anonymous):

@IrishBoy123

OpenStudy (irishboy123):

point you index finger east to west, new york to california. see the diag. point you middle finger south - canada to mexico what is you thumb doing?

OpenStudy (anonymous):

it up

OpenStudy (irishboy123):

i should think so

OpenStudy (anonymous):

Great thanks! can you help with another?

OpenStudy (anonymous):

n which direction is the magnetic field in the center of the solenoid? (Points : 1) direction A direction C direction G direction H I think its direction A

OpenStudy (irishboy123):

another rule thumb is current in a solenoid you will see how the field goes if you imagine you are following the wire along the coil, see where the field is at the centre

OpenStudy (anonymous):

at c

OpenStudy (irishboy123):

looks like A

OpenStudy (anonymous):

thanks

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