What is the difference between alternating current and direct current?

Suppose there is a RLC circuit connected across an AC source. How does increasing the resistance affect the resonant frequency of the circuit? Increasing the resistance decreases the resonant frequency Increasing the resistance has no effect on the resonant frequency Increasing the resistance increases the resonant frequency

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Lockout is the process ci: a. Shutting off a machine at the end of a shift. Warning equipment operators about the risks involved in bypassing a machine guard. Preventing the flow of energy from a power source to a piece of equipment, and keeping it from operating. d. Preventing mechanics from starting repairs without the machine operators' knowledge. b. C. Tagout: Serves as a warning. b. Physically restrains a person from operating a power source. Must be applied using specialized tagout tools. a. C. d. Must be worn like a badge by the employee who is doing the repairs. Those workers who normally operate equipment that may be locked out: Are mechanics. Are authorized employees. Are affected employees. d. a. b. C. Are designated lockout holpers.