I assume you're measuring a battery. A fresh 9V battery, it will read higher than 9V.I have recently bought multi meter on line. I measured the new 9 DCV with this multimeter but the reading is 10.76 DCV which is not correct.
what could be the reason?
yes sir, it is. It measure the almost accurate with other multimeter.A fresh 9V battery will read higher than 9V.
10.76V seems rather high.
Fond memories.For example, you can use a 3-terminal linear regulator such as 7805 as a starting point.
I have a Weston standard mercury cell that was calibrated in 1947 and it still reads very close to the 1.0190V printed on the label on the back of the cell.
I have recently bought multi meter on line. I measured the new 9 DCV with this multimeter but the reading is 10.76 DCV which is not correct.
what could be the reason?
A man with two watches will never know the correct time and a man with two meters will never know the correct voltage. What you don't have is a known accurate meter. If you know one meter to be correct and compare it to another meter you at least have a known to compare to an unknown. If you know the new meter is giving incorrect readings with significant error you can return it to the manufacturer or return it to the retail outlet you got it from. Most new handheld DMMs do not easily allow calibration adjustment or if it does then get a good known and calibrate your inaccurate meter against it. You also need a good stable source for your parameters to be measured.
Ron