Download App

P-1 Effects of electric current — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Effects of electric current5 Marks
Question
What is electromagnetic induction? Who discovered it?
✓

Answer

The process by which a changing magnetic field in a conductor induces a current in another conductor is called electromagnetic induction. A current can be induced in a conductor either by moving it in a magnetic field or by changing the magnetic field around the conductor. Electromagnetic induction was discovered by Michael Faraday in 1831 and independently by Joseph Henry in 1830.

[Note Michael Faraday (1792-1867), British chemist and physicist, discovered the laws of electrolysis, electromagnetic induction, and a magneto-optical effect now known as the Faraday effect. His discoveries also include benzene and the liquefaction of chlorine. Joseph Henry (1797-1878), US physicist, in addition to the dicovery of electromagnetic induction, invented and constructed the first practical electric motor.]

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions: [5 M]" from P-1 Effects of electric current→P-1 Effects of electric current — all question types→Science STD 10 question papers→Maharashtra Board STD 10 question papers→Maharashtra Board question paper generator→

Similar questions

A filamentous alga X is found in ponds, lakes and slow-moving streams. The filament of this alga simply breaks into two (or more) pieces on maturing and each piece then grows to become a complete new alga.
  1. Name an alga which X is likely to be.
  2. What is the colour of X?
  3. What is the method of forming new algae by the breaking of parent alga known as?
  4. An Amoeba also breaks up to form two daughter Amoebae. What is the difference in the splitting of Amoeba and splitting of this alga as a method of reproduction?
  5. Name one marine animal which reproduces in the same way as alga X.
→
Write short note: Blue Revolution.
→
An organic compound A having the molecular formula $C_3H_8O$ is a liquid at room temperature. The organic liquid $A$ reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid A heated with concentrated sulphuric acid at $170^\circ C,$ it forms a compound $B$ which decolourizes bromine water. The compound $B$ adds on one molecule of hydrogen in the presence of Ni as catalyst to forms compound $C$ which gives substitution reactions with chlorine.
  1. What is compound $A?$
  2. What is compound $B?$
  3. What type of reaction occurs when $A$ is converted into $B?$
  4. What is compound $C?$
  5. What type of reaction takes place when $B$ is converted into $C?$
→
Write short notes: Functional group.
→
What is a mirage? With a neat labelled diagram, explain the conditions under which it is seen.
→
Write short note: Post-disaster management.
→
Draw a neat labelled diagram: Forth floatation.
→
 In cold regions in winter, the rocks crack due to anomalous expansion of water.
→
Explain the concept of IVF.
→
Name the hormones secreted by the following endocrine glands:
  1. Thyroid gland.
  2. Parathyroid glands.
  3. Pancreas.
  4. Adrenal glands.
→