SSC (English Medium) 10th Standard - Maharashtra State Board Important Questions

With a neat labelled diagram and derive the equation for three resistances connected in parallel.

Find the expression for resistors connected in series.

Write any two characteristics of a series combination of resistors.

1 calorie =  _________ joule.

The equivalent resistance of the parallel combination of two resistors of 60Ω and 40Ω is _______.

A) 24Ω

(B) 100Ω

(C) 50 Ω

(D) 240Ω

If a bulb of 60W is connected across a source of 220V, find the current drawn by it.

What is Resistivity?

Write the formula of resistivity

Write the SI unit of resistivity

Find the expression for the resistivity of a material and state the SI unit of resistivity.

Identify the figure and give its use.

Identify the figure and give its use.

Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.

Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator

Why does tungsten metal used to make solenoid type coil in an electric bulb?

Observe the following figure which bulb get fuse?

Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?

Give scientific reason :
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster, etc., an alloy such as Nichrome is used, not pure metals.

To increase the effective resistance in a circuit, the resistors are connected in _______________ .

Match the column ‘A’ with column ‘B’.