Which of the following statements are true? Check all that apply. a. A voltmeter
Which of the following statements are true? Check all that apply. a. A voltmeter is used to measure voltage. b. A voltmeter has a small internal resistance. c. A voltmeter must be placed in parallel with a resistor to measure the voltage across the resistor. d. An ammeter must be placed in parallel with a resistor to measure the current through the resistor. e. An ammeter is used to measure current. f. An ammeter has a large internal resistance.