Which makes a larger current: fast-moving electrons or slow-moving electrons? why is this?

Fast moving electrons produce larger current because if electrons move faster, the rate of flow of charge in a given volume will be more

Explanation:

Assuming that there are no collisions between the electrons

Fast moving electrons produce larger currents because the rate of flow of charge which is the rate of change of amount of charge in a given volume will be more as the speed of the electrons is more

where I is the current flowing through it

dQ is the change in amount of charge

dt is the change in time

In case of fast-moving electrons the term dQ ÷ dt will be more and therefore the current will be more

∴ Larger current is produced by fast moving electrons

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )