Which of the following principles explains why the iron filings aligned the way they did? lithospheric reversal induced magnetism magnetic pole reversal pole induction

Agalvanometer has an internal resistance of 100 ω and deflects full-scale at 2.00 ma. what size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 ma, and how should this resistor be connected to the galvanometer?

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Most short-period comets do not have randomly oriented orbits because