explanation is on the image, i tried searching similar definitions yet i get some of the same wording. help?

Write the term that correctly completes the statement. 10. A(n) measures the potential difference across a resistor. 11 A(n) measures current. 12. The resistance of a voltmeter should be as as possible so that it will change the current as little as possible. 13. The resistance of an ammeter should be as as possible so that it will change the current as little as possible. 14. An ammeter is placed in _with the resistor if you want to measure the current through the resistor. 15. A voltmeter should be connected in _with a resistor to measure the potential difference across that resistor. 16. A(n) always has low resistance and is connected in series. 17. A voltmeter always has _resistance and is connected in with the part of the circuit being measured. 18. The result of connecting a(n)_ across a resistor is to lower the potential difference across it. 19. The higher the _of a voltmeter, the smaller the voltage change. 20. If you want to measure the current in a branch or part of a circuit, use a(n)