You gave the answer in your question
Answer
The intranet security model
Explanation:
This is an enterprise system that processes user information for security and access authentication. It prevents unauthorized users, who are not part of the network resources from capturing these information.
The intranet security model is an efficient security procedure that incorporates web security access control in keeping information safe over the intranet. It is also useful in encryption and decryption techniques.
Answer:
4000k-ohm to 10,000k-ohm
Explanation:
As we know that time constant for an RC circuit is t=RC
Putting the values of t we can get the range of varaiable resistor as;
t=RC
Putting t=2 we get the first value of the range for the variable resistor
2=R*0.500*10^-6
R=2/(0.500*10^-6)
R=4*10^6
R=4000k-ohm
Now putting t=5 we get the final value for the range of variable resistor
t=RC
5=R*0.500*10^-6
R=5/(0.500*10^-6)
R=10*10^6
R=10,000k-ohm
So variable resistance must be made to vary in the range from 4000k-ohm to 10,000k-ohm