Question

Which of the following statement is true regarding the magnetic probe used in lab?

If the probe obtains a zero reading, when flipped 180 degress, the probe will still obtain a zero reading.

If the probe obtains a positive reading, when flipped 180 degress, the probe will obtain a negative reading.

		a) Only I is true.
		b)Only II is ture.
		c) Both I and II are true.
		d) Neither I nor II is true.

Answer 1

Correct option is (c)

when magnetic prob is used in lab

If the probe obtains a zero reading, when flipped 180 degress, the probe will still obtain a zero reading.

it means if it represent zero , North or south pole of magnet does not effect. If magnetic pole is reversed now also south or north does not effect the reading

If the probe obtains a positive reading, when flipped 180 degress, the probe will obtain a negative reading.

it means if it represent postive reading for North or south pole. If magnetic poles are reversed now the reading is effected by south or north pole of magnetic probe