Find the current through a person and identify the likely effect on her if she touches a 120 V AC source in the following circumstances. (Note that currents above 10 mA lead to involuntarily muscle contraction.)

(a) Find the current if she is standing on a rubber mat and offers a total resistance of 350 kΩ.

the current is 0.34A

Explanation: she will not experience any electrical injuries since she is standing on a mat, hence she is properly earthed.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.