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Wednesday, April 23, 2014

CBSE Class 10th Results 2014 comming in last week of May

CBSE 10th Result 2014: Where to Get

CBSE 10th Result 2014 will be published on this page. Student can register their email id and mobile number to get the CBSE Class 10 Result 2014 updates on their mobile and emails through Email and SMS

CBSE 10th Result 2014: Date of Declaration

CBSE class 10 results 2014 is expected to be declared in the last week of May 2014. The results will be declared on the official CBSE website www.cbse.nic.in. Class 10th board exams are commencing from Saturday, March 01, 2014 to Wednesday, March 19, 2014. CBSE has recently declared the complete class 10th and 12th date sheet.

Monday, April 21, 2014

Electricity numerical for class 10 CBSE Trend Setter 50 Problems

1. The current passing through a room heater has been halved. What will happen to the heat produced by it?
 2. An electric iron of resistance 20 ohm draws a current of 5 amperes. Calculate the heat produced in 30 seconds.
 3. An electric heater of resistance 8 ohm takes a current of 15 A from the mains supply line. Calculate the rate at which heat is developed in the heater.
 4. A resistance of 40 ohms and one of 60 ohms are arranged in series across 220 volt supply. Find the heat in joules produced by this combination in half a minute.
5. A resistance of 25 ohm is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.
 6. 100 joules of heat is produced per second in a 4 ohm resistor. What is the potential difference across the resistor?
 7. An electric iron is connected to the mains power supply of 220 V. When the electric iron is adjusted at minimum heating’ it consumes a power of 360 W but at ‘maximum heating’ it takes a power of 840 W. Calculate the current and resistance in each case.
 8. Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
1. Which circuit would have the highest voltage across each bulb
2. In which circuit would the bulbs be brighter?
3. In which circuit, if one bulb blows out, all others will stop glowing?
4. Which circuit would have less current in it?
9. Calculate the cost of operating a heater of 500 W for 20 hours at the rate of Rs. 3.90 per unit.
10. Which has a greater resistance, a 100 watt bulb or a 60 watt bulb?
11. How much energy is consumed when a current of 5 amperes flows through the filament (or element) of a heater having resistance of 100 ohms for two hours? Express it in joules.
12. An electric bulb is rated at 220 V, 100 W. What is its resistance?
13. An electric bulb is connected to a 220 V power supply line. If the bulb draws a current of 0.5 A, calculate the power of the bulb.
 14. In which of the following cases more electrical energy is consumed per hour?

To Get Complete Question, Click Here


Sunday, April 13, 2014

Problem Solving Assessment (PSA) result 2014

The second Problem Solving Assessment (PSA) for Academic Session 2013-14 was conducted on 19-10-2013 for Winter Bounds Schools and on 18-01-2014 for Summer Bounds Schools for Classes IX and Class XI. This also included (optional) improvement in PSA by students currently in Class X/XII.
The Board has declared the results of second Problem Solving Assessment (PSA) for Academic Session 2013-14 and the results have been sent to all schools through e-mail.
Note:
  • Those who have not received the results may obtain the same by sending email to : bmgupta.cbse[at]nic.in  by giving 5 digit school code
  • Last date for Uploading of assessment data for Class IX Term-II and Class X Term II is 15th April, 2014.

Basic Science Class 8

We are providing you scanned copy of exercise so that you can check your study chapters are:
1. Food production
2.The cell
3. Micro organism
4. Reproduction
5. Synthetic Material
6. Metal and non metals
7.Combustion and Flame
8.Force and Pressure

Class VIII Mathematics [Click on links given below]
CBSE Class VIII Science