An electric network has 10 switches. Each switch has three connection. How many type of switch to plug in are there?

A switch must be connected in the :

A switch is always connected to the

What is a switch and how is it connected?

Draw the electrical symbols for an open switch.

Shalini is a student of class X. Her mother was preparing tea in an old electric kettle having metal case. When she switched on the electric kettle. she got a severe electric shock. Shalini put off the main switch qUickly and found that the connecting cord was torn, where her mother touched the metal case of the kettle. She also found that the red and black wires of the connecting cord were firmly connected to the two lower terminals of the power plug but the green wire of the cord was not connected to the upper terminal of the plug. Shalini replaced the torn connecting cord and also connected the three wires of the cord firmly to the power plug terminals. On the basis of the above passage, answer the following questions: Why did Shalini switch off the main switch qUickly?

Three resistors, an ideal cell are connected as shown in figure. The switch is initially open. When we close the switch, the current in the resistor R_(2) will.

An electric kettle has two coils. When one of these is switched on, the water in the kettle boils in 15 minutes. When the other is switched on, the water boils in 30 minutes. In how many minutes will water boil if the coils are connected in series and switched on?

shows three resistances are connected with switch S initially the switch is open. When the switch S is closed find the current passed through it.