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Showing posts from January, 2017

7. Sum of Electrical Power Electrical Energy Consumed by a Resistive Load

Three sums of electrical power have been discussed in this video. This is the second part of sum discussion . Sum 1: A water heater has a rating of 4 KVA , 240 V.
a) What is the electrical energy consumed by it in:
i)KWhr and
ii) in Joul.
if it is used for 180 minutes.
b) Find the cost of electricity if the rate is
Rs. 7.00 per commercial unit.
+ Solution 1 - Close Solution 1 Sum 2: The water in an electric kettle took 5 minutes to reach its boiling point when it is connected to 220 v supply.
How long would it have taken if the supply voltage had fallen to 200 v. + Solution 2 - Close Solution 2 Sum 3: What is the resistance under normal working conditions of 240V electric lamp rated at 60 W ? If two such lamps are connected in series across a 240 mains supply, explain why each one appears less bright. + Solution 3 - Close Solution 3

Concept of Phrases and Clauses English Grammar for all higher Class

Concept of Phrases and Clauses are still much more confusing for students. But after going through this topic students will be more confident about phrases and clauses. Phrase: Three most basic elements of phrase are:
-Phrases are Group of words.

-Phrases Can not be used alone as it has got no complete meaning. -Phrases Has no subject and verb.

Examples:
On the hill.to read itIn the north.Have to complete the taskOn the table. Clauses: The Three most basic elements of clauses are:+Clauses are also Group of words.+Clauses Can be used alone as it makes sense by itself. +Phrases Has subject and verb.

Examples of Clauses:
who reach school lateHe is energetic.Til he stop shouting .Which is made up of Gold.Types of Phrases: Noun Phrases:The word group modifies the noun in the sentence. This group of words is called noun phrases.

Examples Noun Phrases:
A bright blue Shirt.Large quantity of water.A sharp knife.An interesting and beautiful place.Verb Phrases: Thre phrase contains helping ver…