Question
In India, what is the time interval in which AC changes direction?
✓
Answer
In India, AC changes direction every $\frac{1}{100} s$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Characters of a phylum are given below. Read them carefully and answer the questions:
(a) Spines of calcium carbonate are present on the body, (b) These animals are exclusively marine, (c) They perform the locomotion with the help of tube feet, (d) Their skeleton is made up of calcareous plates or spicules.
(i) Animals of which phylum show the above character?
(ii) Give an example from that phylum.
(iii) These animals can be classified with the help of which criteria of new system of animals classification.
(a) Spines of calcium carbonate are present on the body, (b) These animals are exclusively marine, (c) They perform the locomotion with the help of tube feet, (d) Their skeleton is made up of calcareous plates or spicules.
(i) Animals of which phylum show the above character?
(ii) Give an example from that phylum.
(iii) These animals can be classified with the help of which criteria of new system of animals classification.
Where should an object be placed in front of a convex lens so as to obtain its real, inverted and magnified image?
Classify each of the following reactions as combination, decomposition, displacement or double displacement reactions:
Which type of fuel is used in thermal power plant?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
Why are metals called electropositive elements?
Give two examples of natural macromolecules.
Write the functions of the following: Ovary.
Name one method for the refining of metals.
Balance the given chemical reaction as per the instructions below.
$
NaOH + H _2 SO _4 \longrightarrow Na _2 SO _4+ H _2 O
$
Make a list of the elements in the chemical equation.
→$
NaOH + H _2 SO _4 \longrightarrow Na _2 SO _4+ H _2 O
$
Make a list of the elements in the chemical equation.