Your friend needs 10 ohms resistance. He came to you and asked, but you have 40 ohms resistance.
How the resistors which are taken are connected ?

Your friend needs 10 ohms resistance. He came to you and asked, but you have 40 ohms resistance. How many resistors your friend will ask you ?

Your friend needs 10 ohms resistance. He came to you and asked, but you have 40 ohms resistance. Show that their effective resistance is 10 ohms.

A potentiometer has a wire of 100cm length and its resistance is 10 Ohms. It is connected in series with a resistance of 40 ohms and a battery of emf 2V and negligible internal resistance. If a source of unknown emf E connected in the secondary is balanced by 40cm length of potentiometer wire, the value of 'E' is

Ask your friend to think the name of any food. Now you have to guess its name.For this you can ask some question. Your friend can only answer in Yes or No . What/How many questions did you ask b efore you could guess the answer ?

Your friend is stronger than you and he is very active. Ask him question to enquiry how he managed to do so.

A 6 V cell with 1 ohm internal resistance and 10 V cell with 2 ohm internal resistance and 10 ohm extarnal resistance are connected in parallel . The current in ampere through 10 V cells is

A 50V battery is connected across a 10 ohm resistor. The current is 4.5A is flowing through the resistor then the internal resistance of the battery is