Physics deflection ammeter
posted by andrew .
8. A galvanometer has a coil resistance of 100 ohms and gives a full scale deflection when the potential difference across it is 0.0002 V. What size resistor (with a value measured in ohms) is required to make a 1.0 A. full scale deflection ammeter?

current for meter: .0002/100=2E5 amps
so the shunt should carry .(12E5) amps
and the resistance =.0002/(12E5) ohms
2E3/(.99999) ohms 
thank you bob!

Plz tell me answer of this question...
Respond to this Question
Similar Questions

College physcs
A galvanometer with a fullscale sensitivity of 500 microA and a coil resistance of 60 ohms is to be used to build an ammeter designed to read 7.5 A. What is the required shunt resistance? 
College Physic
A galvanometer with a fullscale sensitivity of 500 microA and a coil resistance of 60 ohms is to be used to build an ammeter designed to read 7.5 A. What is the required shunt resistance? 
physics
The ammeter your physics instructor uses for in class demonstrations has a resistance R(g)= 60 ohms and requires a current of 1.0 mA for a full scale deflection. The same ammeter can be used to measure currents of much greater values … 
physics
A circuit consists of a 12.0 V battery connected to three resistors 44 ohms, 15 ohms and 120 ohms in series. A)Find the current that flows through the battery. B)Find the potential difference across the 44 Ohms resistor. C)Find the … 
Physics
The coil of wire in a galvanometer has a resistance of RC = 78.0 Ù. The galvanometer exhibits a fullscale deflection when the current through it is 0.440 mA. A resistor is connected in series with this combination so as to produce … 
Physics
A ammeter is to be constructed using a galvanometer that has a 2.00 mA fullscale deflection and internal resistance of 50.0 ohms. It must be good enough to detect 40 mA, which is the max current. How would one do this? 
Physics
When a moving coil galvanometer has a resistance of 20 ohms and gives full scale deflection of 1.5mA.calculate the potential difference across its terminals when the current is flowing 
physics
1)a galvanometer has a resistance of 40 ohm and is of 3 mA fullscale deflection.how would you modify it to act as a 05 A ammeter? 
physics
A galvanometer of resistance 50 ohm which gives a full deflection for 1mA is to be adapted to measure currents up to 5A. Calculate the resistance of the resistor required 
Physics
A movingcoil instrument gives a fullscale deflection when the current is 40mA and its resistance is 25 Ω. Calculate the value of shunt to be connected in parallel with the metre to enable it to be used as an ammeter for measuring …