SSC (English Medium) 10th Standard - Maharashtra State Board Important Questions for Science and Technology 1

In ______ process a layer of molten tin is deposited on metals.

Write the molecular formula of calcium carbonate.

Draw figure ‘Electric motor’ and working 

Name any four appliances where electric motor is used.

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

State Fleming’s right-hand rule.

State three differences between direct current and alternating current.

State whether the following statement is true or false.

An electric motor converts mechanical energy into electrical energy.

State the right-hand thumb rule.

Explain the construction and working of an electric motor.

Label the four parts of an electric motor

Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.

Tell the odd one out. Give proper explanation.

Loud speaker, Microphone, Electric motor, Magnet.

Name the following diagram and explain the concept behind it.

Identify the figure and give its use.

Identify the figure and give its use.

Identify the figure and explain their use.

Write the correct option by observing the figures.

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.

i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine