Calculate resistance with a silver plate in circuit

[lelon]

Here is the question that a circuit with silver plate, i though silver plate will act as conductor but I can't the answer 1.333. If i assume it as insulator, i will get the answer 1.3333... why? Thanks for your help in advance.

 

[Simon Bridge]

Here is the question that a circuit with silver plate, i though silver plate will act as conductor but I can't the answer 1.333. If i assume it as insulator, i will get the answer 1.3333... why?

Why not? The electronics is different so you should get different answers.
If you want to know why you get those particular results, you will have to show your working.

 

[NascentOxygen]

Here is the question that a circuit with silver plate, i though silver plate will act as conductor but I can't the answer 1.333. If i assume it as insulator, i will get the answer 1.3333... why? Thanks for your help in advance.

Hi lelon.

Of your 3 answers, two are wrong. Show your working and I think you will discover why B is not the correct answer.

 

[lelon]

Simon Bridge and NascentOxygen, from what i do is assume silver plate is conductor without resistance, so , my working is calculate node XZ , i get resitance 1/R = 1/2 + 1/2 where R is 1 ohm... then top part YZ resistance, R = 2 + 1 and I get 3 ohm. Last , I calculate total resistance in parallel circuit where 1/R = 1/2 + 1/3 where i get R = 1.2... Am I correct?

Thanks for your both reply. :)

 

[NascentOxygen]

what i do is assume silver plate is conductor without resistance, so , my working is calculate node XZ , i get resitance 1/R = 1/2 + 1/2 where R is 1 ohm... then top part YZ resistance, R = 2 + 1 and I get 3 ohm. Last , I calculate total resistance in parallel circuit where 1/R = 1/2 + 1/3 where i get R = 1.2... Am I correct? ✔

 

[Simon Bridge]

Well done :D