If a copper layer has to deposited on a steel spoon by clectroplating, where should the copper rod be connected?
If a copper layer has to deposited on a steel spoon by clectroplating, where should the copper rod be connected?
- A
To positive terminal.
- B
To negative terminal.
- C
with a nickel
- D
with copper rods
Similar Questions
$(a)$ Name an instrument that measures electric current in a circuit. Define the unit of electric current.
$(b)$ What do the following symbols mean in circuit diagrams ?
$(c)$ An electric circuit consisting of a $0.5\, m$ long nichrome wire $XY,$ an ammeter, a voltmeter, four cells of $1.5\, V$ each and a plug key was set up.
$(i)$ Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points $X$ and $Y$ and the electric current flowing through $XY.$
$(ii)$ Following graph was plotted between $V$ and.$I$ values What would be the values of $V / I$ ratios when the potential difference is $0.8 V, 1.2 V$ and $1.6 V$ respectively ? What conclusion do you draw from these values ?
$(a)$ Name an instrument that measures electric current in a circuit. Define the unit of electric current.
$(b)$ What do the following symbols mean in circuit diagrams ?
$(c)$ An electric circuit consisting of a $0.5\, m$ long nichrome wire $XY,$ an ammeter, a voltmeter, four cells of $1.5\, V$ each and a plug key was set up.
$(i)$ Draw a diagram of this electric circuit to study the relation between the potential difference maintained between the points $X$ and $Y$ and the electric current flowing through $XY.$
$(ii)$ Following graph was plotted between $V$ and.$I$ values What would be the values of $V / I$ ratios when the potential difference is $0.8 V, 1.2 V$ and $1.6 V$ respectively ? What conclusion do you draw from these values ?
No current flows between two charged bodies when connected, if they have the same
No current flows between two charged bodies when connected, if they have the same
Why is very less heat generated in long electric cables than in filaments of electric bulbs ?
Why is very less heat generated in long electric cables than in filaments of electric bulbs ?
Electric power of a circuit is the rate at which work is done in maintaining the electric current in the circuit.
Electric power of a circuit is the rate at which work is done in maintaining the electric current in the circuit.
What is the device (meter) to measure electric potential difference called?
What is the device (meter) to measure electric potential difference called?