Questions

Q:

Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

A) P B) 3P
C) p/3 D) 2p/ 3
 
Answer & Explanation Answer: B) 3P

Explanation:

P= I^2.R where, I= Current, P= Electric Power, R=Resistance. Here all the resistance is put in parallel combination and in parallel combination the value of Resistance decreases and dissipation of power increase, hence 3 times more power will be dissipated(3P).

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 2984
Q:

What occurs when an atom loses an electron?

A) The atom's radius decreases and the atom becomes a positive ion. B) The atom's radius increases and the atom becomes a negative ion.
C) The atom's radius decreases and the atom becomes a negative ion. D) The atom's radius increases and the atom becomes a positive ion.
 
Answer & Explanation Answer: A) The atom's radius decreases and the atom becomes a positive ion.

Explanation:

When an atom loses an electron it becomes a positive ion by acquiring negatively charged. When it loses electron, the atom's radius also decreased.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

1 2983
Q:

I am a protector. I sit on a bridge. One person can see right through me while others wonder what I hide. What am I?

Answer

The Sunglasses. 


It protects us from the sunlight and it sits on the bridge means hangs on our ears and nose. Only who keeps that can see through it and others wonder what he is watching.

Report Error

View answer Workspace Report Error Discuss

Subject: Word Puzzles Exam Prep: TOEFL , GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

1 2983
Q:

Differentiate between Complier and Interpreter?

Answer

An interpreter reads one instruction at a time and carries out the actions implied by that instruction. It does not perform any translation. But a compiler translates the entire instructions

Report Error

View answer Workspace Report Error Discuss

0 2982
Q:

Molar mass of HNO3?

A) 63 g/mol B) 53 g/mol
C) 48 g/mol D) 52 g/mol
 
Answer & Explanation Answer: A) 63 g/mol

Explanation:

Calculation of molar mass of HNO3:

Atomic masses of H, N, O are 1, 14, 16 respectively

Now the molar mass of HNO3 is

HNO3 = 1X1 + 1X14 + 3X16

= 1 + 14 + 48

= 63 g/mol or amu.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

1 2982
Q:

What is the difference between JOURNAL ENTRY & LEDGER?

Answer

A journal is also called as a book of prime entry.Transactions occurred are first entered in this book to show which accounts should be debited and which should be credited.


on the basis of entries made in the journal, accounts are prepared, the book which contains the accounts is called a ledger. Transactions entered in the journal are classified according to their nature and posted in their respective accounts in ledger. it is also called as book of final entry.

Report Error

View answer Workspace Report Error Discuss

Subject: Finance

2 2981
Q:

Indians who have been featured on Forbe's list of the 100 Greatest Living Business Minds ?

A) Ratan Tata B) Lakshmi Mittal
C) Vinod Khosla D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Three Indians – Ratan Tata, Lakshmi Mittal and Vinod Khosla have been featured on Forbe's list of the 100 Greatest Living Business Minds.

Report Error

View Answer Report Error Discuss

Filed Under: Famous Personalities
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

7 2981
Q:

Among the following, which one has the largest number of neighboring countries sharing the land border?

A) Sudan B) Brazil
C) China D) Zaire
 
Answer & Explanation Answer: C) China

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: World Geography

7 2980