SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Important Questions for Science and Technology 1

Differentiate between resistances in series and parallel.

State four most common electrical appliances based on heating effect of electric current. Why do we use finely heated platinum wire in surgery?

Complete the following :-

(a)

Complete the following :-

(b)

Complete the following :-

(c)

What will be the change in the current if the potential difference is kept constant and the resistance of the circuit is made four times?

1. It will remain unchanged.
2. It will become four times.
3. It will become one-fourth.
4. It will become half.

If the equivalent resistance is to be increased, then the number of resistances should be connected in

1. Series
2. Parallel
3. Mixed arrangement
4. None of the above

Find the resistance of a conductor if 0.24 A current is passing through it and a potential difference of 24 V is applied across it.

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.