The voltage $V_0$ in the network shown is

The circuit shown below contains two ideal diodes,each with a forward resistance of $50\,\Omega $. If the battery voltage is $6\,V$,the current through the $100\,\Omega $ resistance (in Amperes) is

The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit (in $A$)?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ Diffusion current in a $p-n$ junction is greater than the drift current in magnitude if the junction is forward biased.
Reason $R:$ Diffusion current in a $p-n$ junction is from the $n$-side to the $p$-side if the junction is forward biased.
In the light of the above statements,choose the most appropriate answer from the options given below:

Can the potential barrier across a $p-n$ junction be measured by simply connecting a voltmeter across the junction?

Two ammeters $A_1$ and $A_2$ are connected as shown in the given figure. By neglecting the internal resistance of the ammeters, the reading in the meter $A_1$ is (in $\text{A}$)