S K Jain and Shailesh K Jain Solutions for Chapter: Electric Current and Its Effects, Exercise 6: Chapter Based Formative Assessment

Author:S K Jain & Shailesh K Jain

S K Jain Science Solutions for Exercise - S K Jain and Shailesh K Jain Solutions for Chapter: Electric Current and Its Effects, Exercise 6: Chapter Based Formative Assessment

Attempt the free practice questions on Chapter 14: Electric Current and Its Effects, Exercise 6: Chapter Based Formative Assessment with hints and solutions to strengthen your understanding. Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from S K Jain and Shailesh K Jain Solutions for Chapter: Electric Current and Its Effects, Exercise 6: Chapter Based Formative Assessment with Hints & Solutions

EASY
7th CBSE
IMPORTANT

The fuse is made from the material that has _____ (low/ high) melting point.

MEDIUM
7th CBSE
IMPORTANT

The core of an electromagnet is made from _____.
(Choose from the following: soft iron/ aluminium)

EASY
7th CBSE
IMPORTANT

In a battery, the cells are connected in the positive-to-positive manner.

MEDIUM
7th CBSE
IMPORTANT

An iron rod cannot be made an electromagnet if the coil is connected to an AC source.

EASY
7th CBSE
IMPORTANT

Greater the current in a copper wire, hotter it will be.

MEDIUM
7th CBSE
IMPORTANT

Electromagnets can be used to remove iron splinters from body parts.

EASY
7th CBSE
IMPORTANT

Electrical fuse is based on the magnetic effect of current.

MEDIUM
7th CBSE
IMPORTANT

Complete the word puzzle with the help of given clues.

Question Image

ACROSS
1. Circuit through which current flows (13).
2. Device used for lifting heavy loads (13).
3. U-shaped soft iron piece used in electric bell (8)
4. Material used to make electromagnet (8).
5. Filament of an electric lamp (8) DOWN
6. A combination of two or more cells (7).
7. A safety device in electrical circuits against high currents (4).
8. An electric appliance based on heating effect of current (6).