[3]4] In the circuit shown, a potential difference of 3.0 V is applied across XY. 6 20
Xo——< Y
§Q 3Q
What is the current in the 5 Q resistor?
h {1 mark]
A 038A [2]
B 060A [=]
CO.75A [e]
D27A [e]

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.