True False If i 2 = 0 and i 1 is greater than zero, then the magnetic field near

Question

True False  If i2 = 0 and i1 is greater than zero, then the magnetic field near charge q points out of the page.
True False  If i1 is greater than i2, then the force on q is north.
True False  If i2 = - i1 then the force on q equals zero.
True False  If i2 = 0 and i1 is greater than zero, then the force on q is north.
True False  If i1 = - i2, then the wires repel each other.
True False  If i1 = 0 and i2 is greater than zero, then the force on q points out of the page.
True False  If v = 0, then the force on q is zero.

Explanation / Answer

False, magnetic field near chage q will be inside the page

True

False, force on q will be qvB, where B is the resultant magnetic field caused due to wires and magnetic field due to both the wires will be in same direction so, it'll add up

True

True, parallel wires with current in opposite direction repel each other

False, direction of force on q will be toward south

True, as force = qvB and since v = 0 then force will be 0

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