(Solved): 7 A 555 monostable circuit is used to control an electromagnetic relay. is (a) Using the equation ...

7 A 555 monostable circuit is used to control an electromagnetic relay. is (a) Using the equation from the data sheef, calculate the time period of the monostable circuit. (2 marks) (b) How should the input change to set the monostable into its unstable state? (I mark) (c) Which contact on the relay would be connected to the common terminal (COM) when the monostable output is high? (I mark) (d) Add to the circuit diagram above the component required to protect the 555 IC from the large induced voltage generated by the relay coil when it switches off.