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A wire carrying conventional current to the right experiences an upward force from an external magnetic...

A wire carrying conventional current to the right experiences an upward force from an external magnetic field. In what direction is the magnetic field pointing?

a. downward b. out of the page c. in to the page d. upward.

A voltmeter can be created with a galvanometer by doing which of the following? a. placing it in series with a resistor of very high resistance b. placing it in parallel with a resistor of very high resistance c. placing it in series with a resistor of very low resistance d. placing it in parallel with a resistor of very low resistance

Which of the following devices allowed for the technological advancement from the galvanometer to the DC motor? a. split ring commutator b. superconducting wire c. ohmmeter d. alternating magnets

For a single loop DC motor, the magnetic force on the wire loop is strongest when the plane of the loop is oriented in which of the following positions? a. perpendicular to the magnetic field b. parallel to the magnetic field c. rotated 45 clockwise from parallel of the magnetic field d. rotated 45 counterclockwise from parallel of the magnetic field

thank you

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