Youssef investigates electrical circuits. The circuit diagram is incomplete: the left-hand side of the loop has not been connected. Youssef has an ammeter and a voltmeter. He wants to measure the current through the lamp and the voltage across the lamp. Describe how Youssef must connect each meter. Write your two answers in order, separated by a comma: first how the ammeter is connected, then how the voltmeter is connected.