Notes on current electricity

• Electrons in a static state have energy.
• Current (I) is the total amount of charge (Q) moving past a point in a conductor divided by the time taken. I=Q/T
• Current flow was thought to move from the positive terminal to the negative terminal.
• An ammeter mus be wired so that all current flows through it.
• Direct current, like a light bulb or other device uses energy.
• V=E/Q    electric potential difference\voltage (v)   increase the electric (E)
• E=VIT
• Potential difference between any two points can be measured using a voltmeter.
• A voltmeter must be connected in parallel with a load.
• The voltmeter must have a large resistance.