1. How many extra electrons are on ball with a charge of -4x10^-17 C?

1. How many coulombs of charge are on all the electrons in a nickel?

Follow the following steps to solve this problem.

1. Find the number of atoms of nickel are in a coin. The coin is 5 grams and 1 mol (6.02x10²³ atoms) has 58 grams.
2. Find the number of electrons are in the nickel. Each atom has 28 electrons.
3. Find the charge of the electrons from b.

1. The average lightning bolt has a charge of 15 coulombs. How many electrons are in the lightning bolt?

1. A device called a capacitor is designed to store charges. A certain capacitor can store a charge of +25x10^-12 Coulombs.Is it storing electrons or protons?How many?

1. You rub a balloon in your hair and 75x10¹⁴electrons end up on the balloon? What is the charge of the balloon? What is the charge of your hair?

1. When you walk in socks on a carpet in the winter you sometimes end up statically charged.Assume the electrons get rubbed off of your sock onto the carpet. If the you end up with a charge of +33X10^-6 Coulombs, how many extra protons is on your body compared to electrons? What must the charge of the carpet be and how many extra electrons are there?

1. When your laundry is in the dryer you end up rubbing 5x10²⁰ electrons off a shirt and onto a sock. What is the charge of the shirt? The sock?

1. How many protons are needed to make a charge of 5 Coulombs?

1. What is the charge of 8x10¹⁷ electrons?

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